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131325316100 = 2252111913131997
BaseRepresentation
bin111101001001110011…
…0010100110000000100
3110112222021202021112022
41322103212110300010
54122423240103400
6140155141142312
712326235524456
oct1722346246004
9415867667468
10131325316100
11507707987a0
12215506ba998
13c4cb634844
1464db4da2d6
1536393a4b85
hex1e93994c04

131325316100 has 144 divisors (see below), whose sum is σ = 313665924096. Its totient is φ = 47329152000.

The previous prime is 131325316097. The next prime is 131325316103. The reversal of 131325316100 is 1613523131.

It is an interprime number because it is at equal distance from previous prime (131325316097) and next prime (131325316103).

It is a self number, because there is not a number n which added to its sum of digits gives 131325316100.

It is not an unprimeable number, because it can be changed into a prime (131325316103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65760302 + ... + 65762298.

It is an arithmetic number, because the mean of its divisors is an integer number (2178235584).

Almost surely, 2131325316100 is an apocalyptic number.

131325316100 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 131325316100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156832962048).

131325316100 is an abundant number, since it is smaller than the sum of its proper divisors (182340607996).

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

131325316100 is a wasteful number, since it uses less digits than its factorization.

131325316100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526 (or 2519 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

Adding to 131325316100 its reverse (1613523131), we get a palindrome (132938839231).

The spelling of 131325316100 in words is "one hundred thirty-one billion, three hundred twenty-five million, three hundred sixteen thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 191 220 275 313 382 550 626 764 955 1100 1252 1565 1910 1997 2101 3130 3443 3820 3994 4202 4775 6260 6886 7825 7988 8404 9550 9985 10505 13772 15650 17215 19100 19970 21010 21967 31300 34430 39940 42020 43934 49925 52525 59783 68860 86075 87868 99850 105050 109835 119566 172150 199700 210100 219670 239132 298915 344300 381427 439340 549175 597830 625061 657613 762854 1098350 1195660 1250122 1315226 1494575 1525708 1907135 2196700 2500244 2630452 2989150 3125305 3288065 3814270 4195697 5978300 6250610 6576130 6875671 7628540 8391394 9535675 12501220 13152260 13751342 15626525 16440325 16782788 19071350 20978485 27502684 31253050 32880650 34378355 38142700 41956970 62506100 65761300 68756710 83913940 104892425 119386651 137513420 171891775 209784850 238773302 343783550 419569700 477546604 596933255 687567100 1193866510 1313253161 2387733020 2626506322 2984666275 5253012644 5969332550 6566265805 11938665100 13132531610 26265063220 32831329025 65662658050 131325316100