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23220185632 = 257859120677
BaseRepresentation
bin10101101000000001…
…111110101000100000
32012221020212122111021
4111220001332220200
5340023331420012
614400041055224
71451263215130
oct255001765040
965836778437
1023220185632
11993620a166
124600487514
132260893217
1411a3c46ac0
1590d805007
hex56807ea20

23220185632 has 48 divisors (see below), whose sum is σ = 52306672320. Its totient is φ = 9939840768.

The previous prime is 23220185623. The next prime is 23220185633. The reversal of 23220185632 is 23658102232.

It is a super-3 number, since 3×232201856323 (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (23220185633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132078 + ... + 252754.

It is an arithmetic number, because the mean of its divisors is an integer number (1089722340).

Almost surely, 223220185632 is an apocalyptic number.

It is an amenable number.

23220185632 is an abundant number, since it is smaller than the sum of its proper divisors (29086486688).

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

23220185632 is a wasteful number, since it uses less digits than its factorization.

23220185632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121553 (or 121545 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 23220185632 its reverse (23658102232), we get a palindrome (46878287864).

The spelling of 23220185632 in words is "twenty-three billion, two hundred twenty million, one hundred eighty-five thousand, six hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 859 1718 3436 6013 6872 12026 13744 24052 27488 48104 96208 120677 192416 241354 482708 844739 965416 1689478 1930832 3378956 3861664 6757912 13515824 27031648 103661543 207323086 414646172 725630801 829292344 1451261602 1658584688 2902523204 3317169376 5805046408 11610092816 23220185632