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23134380 = 2235385573
BaseRepresentation
bin101100001000…
…0000010101100
31121112100101220
41120100002230
521410300010
62143503340
7400432113
oct130200254
947470356
1023134380
1112071225
1278b7b50
134a3cca9
143102c7a
15206e970
hex16100ac

23134380 has 24 divisors (see below), whose sum is σ = 64776432. Its totient is φ = 6169152.

The previous prime is 23134367. The next prime is 23134409. The reversal of 23134380 is 8343132.

It is a self number, because there is not a number n which added to its sum of digits gives 23134380.

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, 192727 + ... + 192846.

It is an arithmetic number, because the mean of its divisors is an integer number (2699018).

Almost surely, 223134380 is an apocalyptic number.

23134380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23134380 is an abundant number, since it is smaller than the sum of its proper divisors (41642052).

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

23134380 is a wasteful number, since it uses less digits than its factorization.

23134380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385585 (or 385583 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23134380 is about 4809.8212024981. The cubic root of 23134380 is about 284.9394762214.

The spelling of 23134380 in words is "twenty-three million, one hundred thirty-four thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 385573 771146 1156719 1542292 1927865 2313438 3855730 4626876 5783595 7711460 11567190 23134380