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22203121230 = 23252923393637
BaseRepresentation
bin10100101011011010…
…001011111001001110
32010022101002102102100
4110223122023321032
5330432444334410
614111105535530
71414133262603
oct245332137116
963271072370
1022203121230
1194640a0674
1243779445a6
13212ac5cb74
141108b366aa
1589e3a28c0
hex52b68be4e

22203121230 has 96 divisors (see below), whose sum is σ = 59760698400. Its totient is φ = 5712650496.

The previous prime is 22203121177. The next prime is 22203121243. The reversal of 22203121230 is 3212130222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6102972 + ... + 6106608.

It is an arithmetic number, because the mean of its divisors is an integer number (622507275).

Almost surely, 222203121230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22203121230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29880349200).

22203121230 is an abundant number, since it is smaller than the sum of its proper divisors (37557577170).

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

22203121230 is a wasteful number, since it uses less digits than its factorization.

22203121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6018 (or 6015 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22203121230 its reverse (3212130222), we get a palindrome (25415251452).

The spelling of 22203121230 in words is "twenty-two billion, two hundred three million, one hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 29 30 45 58 87 90 145 174 261 290 435 522 870 1305 2339 2610 3637 4678 7017 7274 10911 11695 14034 18185 21051 21822 23390 32733 35085 36370 42102 54555 65466 67831 70170 105255 105473 109110 135662 163665 203493 210510 210946 316419 327330 339155 406986 527365 610479 632838 678310 949257 1017465 1054730 1220958 1582095 1898514 2034930 3052395 3164190 4746285 6104790 8506943 9492570 17013886 25520829 42534715 51041658 76562487 85069430 127604145 153124974 246701347 255208290 382812435 493402694 740104041 765624870 1233506735 1480208082 2220312123 2467013470 3700520205 4440624246 7401040410 11101560615 22203121230