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23161927168 = 29172661067
BaseRepresentation
bin10101100100100011…
…101111011000000000
32012210012020210220101
4111210203233120000
5334413423132133
614350200252144
71446655063312
oct254443573000
965705223811
1023161927168
119906338776
1245a4a71054
1322517a5b63
14119a1dd7b2
1590864837d
hex5648ef600

23161927168 has 40 divisors (see below), whose sum is σ = 49000906152. Its totient is φ = 10899726336.

The previous prime is 23161927141. The next prime is 23161927169. The reversal of 23161927168 is 86172916132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23161927169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321830 + ... + 1339237.

Almost surely, 223161927168 is an apocalyptic number.

It is an amenable number.

23161927168 is an abundant number, since it is smaller than the sum of its proper divisors (25838978984).

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

23161927168 is an equidigital number, since it uses as much as digits as its factorization.

23161927168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661102 (or 2661086 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The spelling of 23161927168 in words is "twenty-three billion, one hundred sixty-one million, nine hundred twenty-seven thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 16 17 32 34 64 68 128 136 256 272 512 544 1088 2176 4352 8704 2661067 5322134 10644268 21288536 42577072 45238139 85154144 90476278 170308288 180952556 340616576 361905112 681233152 723810224 1362466304 1447620448 2895240896 5790481792 11580963584 23161927168