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23263156532 = 2271127197997
BaseRepresentation
bin10101101010100101…
…111001100100110100
32020001020201210111002
4111222211321210310
5340120332002112
614404214102432
71452324365540
oct255245714464
966036653432
1023263156532
119958499900
12461294aa18
13226975a0a5
1411a9830a20
159124921c2
hex56a979934

23263156532 has 144 divisors (see below), whose sum is σ = 52447981824. Its totient is φ = 8834918400.

The previous prime is 23263156529. The next prime is 23263156571. The reversal of 23263156532 is 23565136232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23332658 + ... + 23333654.

It is an arithmetic number, because the mean of its divisors is an integer number (364222096).

Almost surely, 223263156532 is an apocalyptic number.

23263156532 is a gapful number since it is divisible by the number (22) 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 23263156532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26223990912).

23263156532 is an abundant number, since it is smaller than the sum of its proper divisors (29184825292).

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

23263156532 is a wasteful number, since it uses less digits than its factorization.

23263156532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1185 counting only the distinct ones).

The product of its digits is 194400, while the sum is 38.

The spelling of 23263156532 in words is "twenty-three billion, two hundred sixty-three million, one hundred fifty-six thousand, five hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 44 71 77 97 121 142 154 194 242 284 308 388 484 497 679 781 847 994 997 1067 1358 1562 1694 1988 1994 2134 2716 3124 3388 3988 4268 5467 6887 6979 7469 8591 10934 10967 11737 13774 13958 14938 17182 21868 21934 23474 27548 27916 29876 34364 43868 46948 48209 60137 70787 75757 76769 82159 96418 96709 120274 120637 141574 151514 153538 164318 192836 193418 240548 241274 283148 303028 307076 328636 386836 482548 495509 530299 676963 778657 833327 844459 991018 1060598 1063799 1353926 1557314 1666654 1688918 1982036 2121196 2127598 2707852 3114628 3333308 3377836 4255196 5450599 5833289 6866339 7446593 8565227 10901198 11666578 11701789 13732678 14893186 17130454 21802396 23333156 23403578 27465356 29786372 34260908 46807156 48064373 59956589 75529729 81912523 96128746 119913178 151059458 163825046 192257492 239826356 302118916 327650092 528708103 830827019 1057416206 1661654038 2114832412 3323308076 5815789133 11631578266 23263156532