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23102992 = 2411131267
BaseRepresentation
bin101100000100…
…0011000010000
31121110202100101
41120020120100
521403243432
62143102144
7400241443
oct130103020
947422311
1023102992
111204a690
1278a1954
134a2b913
1430d565a
1520654e7
hex1608610

23102992 has 20 divisors (see below), whose sum is σ = 48831696. Its totient is φ = 10501280.

The previous prime is 23102941. The next prime is 23103019. The reversal of 23102992 is 29920132.

It is a self number, because there is not a number n which added to its sum of digits gives 23102992.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65458 + ... + 65809.

Almost surely, 223102992 is an apocalyptic number.

23102992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23102992 is an abundant number, since it is smaller than the sum of its proper divisors (25728704).

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

23102992 is a wasteful number, since it uses less digits than its factorization.

23102992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131286 (or 131280 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 23102992 is about 4806.5571878425. The cubic root of 23102992 is about 284.8105522539.

The spelling of 23102992 in words is "twenty-three million, one hundred two thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 11 16 22 44 88 176 131267 262534 525068 1050136 1443937 2100272 2887874 5775748 11551496 23102992