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23902086 = 2313306437
BaseRepresentation
bin101101100101…
…1011110000110
31122222100111110
41123023132012
522104331321
62212145450
7410110245
oct133133606
948870443
1023902086
1112545a9a
128008286
134c4b560
14326295c
152172176
hex16cb786

23902086 has 16 divisors (see below), whose sum is σ = 51481584. Its totient is φ = 7354464.

The previous prime is 23902069. The next prime is 23902097. The reversal of 23902086 is 68020932.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153141 + ... + 153296.

It is an arithmetic number, because the mean of its divisors is an integer number (3217599).

Almost surely, 223902086 is an apocalyptic number.

23902086 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23902086 is an abundant number, since it is smaller than the sum of its proper divisors (27579498).

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

23902086 is a wasteful number, since it uses less digits than its factorization.

23902086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306455.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 23902086 is about 4888.9759663962. The cubic root of 23902086 is about 288.0571115519.

The spelling of 23902086 in words is "twenty-three million, nine hundred two thousand, eighty-six".

Divisors: 1 2 3 6 13 26 39 78 306437 612874 919311 1838622 3983681 7967362 11951043 23902086