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23193808 = 2411131783
BaseRepresentation
bin101100001111…
…0100011010000
31121122100220221
41120132203100
521414200213
62145042424
7401100301
oct130364320
947570827
1023193808
1112101940
127926414
134a61061
14311a7a8
15208238d
hex161e8d0

23193808 has 20 divisors (see below), whose sum is σ = 49023648. Its totient is φ = 10542560.

The previous prime is 23193799. The next prime is 23193811. The reversal of 23193808 is 80839132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65716 + ... + 66067.

Almost surely, 223193808 is an apocalyptic number.

It is an amenable number.

23193808 is an abundant number, since it is smaller than the sum of its proper divisors (25829840).

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

23193808 is a wasteful number, since it uses less digits than its factorization.

23193808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131802 (or 131796 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 23193808 is about 4815.9950166087. The cubic root of 23193808 is about 285.1832534375.

The spelling of 23193808 in words is "twenty-three million, one hundred ninety-three thousand, eight hundred eight".

Divisors: 1 2 4 8 11 16 22 44 88 176 131783 263566 527132 1054264 1449613 2108528 2899226 5798452 11596904 23193808