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23297423994 = 232132343100669
BaseRepresentation
bin10101101100101000…
…100111101001111010
32020010122012202121100
4111230220213221322
5340203120031434
614411440352230
71453221556635
oct255450475172
966118182540
1023297423994
119975874519
124622315676
1322738975b0
1411b01d0c1c
159154b0699
hex56ca27a7a

23297423994 has 96 divisors (see below), whose sum is σ = 58043905920. Its totient is φ = 6697240704.

The previous prime is 23297423983. The next prime is 23297424023. The reversal of 23297423994 is 49932479232.

23297423994 is a `hidden beast` number, since 232 + 97 + 4 + 239 + 94 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 23297423994.

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, 181092 + ... + 281760.

It is an arithmetic number, because the mean of its divisors is an integer number (604624020).

Almost surely, 223297423994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23297423994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29021952960).

23297423994 is an abundant number, since it is smaller than the sum of its proper divisors (34746481926).

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

23297423994 is a wasteful number, since it uses less digits than its factorization.

23297423994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100756 (or 100753 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The spelling of 23297423994 in words is "twenty-three billion, two hundred ninety-seven million, four hundred twenty-three thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 9 13 18 23 26 39 43 46 69 78 86 117 129 138 207 234 258 299 387 414 559 598 774 897 989 1118 1677 1794 1978 2691 2967 3354 5031 5382 5934 8901 10062 12857 17802 25714 38571 77142 100669 115713 201338 231426 302007 604014 906021 1308697 1812042 2315387 2617394 3926091 4328767 4630774 6946161 7852182 8657534 11778273 12986301 13892322 20838483 23556546 25972602 30100031 38958903 41676966 56273971 60200062 77917806 90300093 99561641 112547942 168821913 180600186 199123282 270900279 298684923 337643826 506465739 541800558 597369846 896054769 1012931478 1294301333 1792109538 2588602666 3882903999 7765807998 11648711997 23297423994