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23086860 = 2235675743
BaseRepresentation
bin101100000010…
…0011100001100
31121102221012220
41120010130030
521402234420
62142455340
7400143426
oct130043414
947387186
1023086860
1112039555
127894550
134a24484
1430cd816
152060840
hex160470c

23086860 has 48 divisors (see below), whose sum is σ = 65619456. Its totient is φ = 6063552.

The previous prime is 23086849. The next prime is 23086879. The reversal of 23086860 is 6868032.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149 + ... + 6891.

It is an arithmetic number, because the mean of its divisors is an integer number (1367072).

Almost surely, 223086860 is an apocalyptic number.

23086860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23086860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32809728).

23086860 is an abundant number, since it is smaller than the sum of its proper divisors (42532596).

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

23086860 is a wasteful number, since it uses less digits than its factorization.

23086860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5822 (or 5820 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 23086860 is about 4804.8787705831. The cubic root of 23086860 is about 284.7442457823.

The spelling of 23086860 in words is "twenty-three million, eighty-six thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 67 134 201 268 335 402 670 804 1005 1340 2010 4020 5743 11486 17229 22972 28715 34458 57430 68916 86145 114860 172290 344580 384781 769562 1154343 1539124 1923905 2308686 3847810 4617372 5771715 7695620 11543430 23086860