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23252656 = 247319223
BaseRepresentation
bin101100010110…
…0111010110000
31121202100122111
41120230322300
521423041111
62150215104
7401434000
oct130547260
947670574
1023252656
1112142079
127954494
134a81a8b
143134000
152094a21
hex162ceb0

23252656 has 80 divisors (see below), whose sum is σ = 55552000. Its totient is φ = 9398592.

The previous prime is 23252653. The next prime is 23252657. The reversal of 23252656 is 65625232.

It is a super-2 number, since 2×232526562 = 1081372022108672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23252653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104161 + ... + 104383.

It is an arithmetic number, because the mean of its divisors is an integer number (694400).

Almost surely, 223252656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23252656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27776000).

23252656 is an abundant number, since it is smaller than the sum of its proper divisors (32299344).

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

23252656 is a wasteful number, since it uses less digits than its factorization.

23252656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 251 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 23252656 is about 4822.1007870014. The cubic root of 23252656 is about 285.4242414693.

Adding to 23252656 its reverse (65625232), we get a palindrome (88877888).

The spelling of 23252656 in words is "twenty-three million, two hundred fifty-two thousand, six hundred fifty-six".

Divisors: 1 2 4 7 8 14 16 19 28 38 49 56 76 98 112 133 152 196 223 266 304 343 392 446 532 686 784 892 931 1064 1372 1561 1784 1862 2128 2744 3122 3568 3724 4237 5488 6244 6517 7448 8474 10927 12488 13034 14896 16948 21854 24976 26068 29659 33896 43708 52136 59318 67792 76489 87416 104272 118636 152978 174832 207613 237272 305956 415226 474544 611912 830452 1223824 1453291 1660904 2906582 3321808 5813164 11626328 23252656