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23243315460 = 22354312497213
BaseRepresentation
bin10101101001011010…
…001101100100000100
32012222212101202122120
4111221122031210010
5340100242043320
614402224525540
71451663631051
oct255132154404
965885352576
1023243315460
119948277a22
1246081808b0
132265601101
1411a6d48028
15910873440
hex56968d904

23243315460 has 96 divisors (see below), whose sum is σ = 66657360000. Its totient is φ = 6048387072.

The previous prime is 23243315443. The next prime is 23243315461. The reversal of 23243315460 is 6451334232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23243315461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3218814 + ... + 3226026.

It is an arithmetic number, because the mean of its divisors is an integer number (694347500).

Almost surely, 223243315460 is an apocalyptic number.

23243315460 is a gapful number since it is divisible by the number (20) 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 23243315460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33328680000).

23243315460 is an abundant number, since it is smaller than the sum of its proper divisors (43414044540).

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

23243315460 is a wasteful number, since it uses less digits than its factorization.

23243315460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8517 (or 8515 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 23243315460 its reverse (6451334232), we get a palindrome (29694649692).

The spelling of 23243315460 in words is "twenty-three billion, two hundred forty-three million, three hundred fifteen thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1249 1290 2498 2580 3747 4996 6245 7213 7494 12490 14426 14988 18735 21639 24980 28852 36065 37470 43278 53707 72130 74940 86556 107414 108195 144260 161121 214828 216390 268535 310159 322242 432780 537070 620318 644484 805605 930477 1074140 1240636 1550795 1611210 1860954 3101590 3222420 3721908 4652385 6203180 9009037 9304770 18018074 18609540 27027111 36036148 45045185 54054222 90090370 108108444 135135555 180180740 270271110 387388591 540542220 774777182 1162165773 1549554364 1936942955 2324331546 3873885910 4648663092 5810828865 7747771820 11621657730 23243315460