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131022203013100 = 22527792818431667
BaseRepresentation
bin11101110010100111111011…
…110111100100011111101100
3122011220121012121022122100101
4131302213323313210133230
5114133131432432404400
61142354434044040444
736412020222023230
oct3562477367443754
9564817177278311
10131022203013100
113882522794a523
1212840b92833124
1358154577735a9
14244d7193105c0
1510232c519056a
hex7729fbde47ec

131022203013100 has 144 divisors (see below), whose sum is σ = 330219194618880. Its totient is φ = 44195420505600.

The previous prime is 131022203012999. The next prime is 131022203013101. The reversal of 131022203013100 is 1310302220131.

It is a super-2 number, since 2×1310222030131002 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131022203013101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11323467 + ... + 19755133.

It is an arithmetic number, because the mean of its divisors is an integer number (2293188851520).

Almost surely, 2131022203013100 is an apocalyptic number.

131022203013100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131022203013100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165109597309440).

131022203013100 is an abundant number, since it is smaller than the sum of its proper divisors (199196991605780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131022203013100 is a wasteful number, since it uses less digits than its factorization.

131022203013100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8432048 (or 8432041 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131022203013100 its reverse (1310302220131), we get a palindrome (132332505233231).

The spelling of 131022203013100 in words is "one hundred thirty-one trillion, twenty-two billion, two hundred three million, thirteen thousand, one hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 79 100 140 158 175 281 316 350 395 553 562 700 790 1106 1124 1405 1580 1967 1975 2212 2765 2810 3934 3950 5530 5620 7025 7868 7900 9835 11060 13825 14050 19670 22199 27650 28100 39340 44398 49175 55300 88796 98350 110995 155393 196700 221990 310786 443980 554975 621572 776965 1109950 1553930 2219900 3107860 3884825 7769650 8431667 15539300 16863334 33726668 42158335 59021669 84316670 118043338 168633340 210791675 236086676 295108345 421583350 590216690 666101693 843166700 1180433380 1332203386 1475541725 2369298427 2664406772 2951083450 3330508465 4662711851 4738596854 5902166900 6661016930 9325423702 9477193708 11846492135 13322033860 16585088989 16652542325 18650847404 23313559255 23692984270 33170177978 33305084650 46627118510 47385968540 59232460675 66340355956 66610169300 82925444945 93254237020 116567796275 118464921350 165850889890 187174575733 233135592550 236929842700 331701779780 374349151466 414627224725 466271185100 748698302932 829254449450 935872878665 1310222030131 1658508898900 1871745757330 2620444060262 3743491514660 4679364393325 5240888120524 6551110150655 9358728786650 13102220301310 18717457573300 26204440602620 32755550753275 65511101506550 131022203013100