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23992480 = 255149953
BaseRepresentation
bin101101110000…
…1100010100000
31200010221111101
41123201202200
522120224410
62214124144
7410634631
oct133414240
950127441
1023992480
11125a79a6
128050654
134c80745
143287888
15218dd3a
hex16e18a0

23992480 has 24 divisors (see below), whose sum is σ = 56682612. Its totient is φ = 9596928.

The previous prime is 23992471. The next prime is 23992523. The reversal of 23992480 is 8429932.

It can be written as a sum of positive squares in 2 ways, for example, as 21790224 + 2202256 = 4668^2 + 1484^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74817 + ... + 75136.

Almost surely, 223992480 is an apocalyptic number.

23992480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23992480 is an abundant number, since it is smaller than the sum of its proper divisors (32690132).

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

23992480 is a wasteful number, since it uses less digits than its factorization.

23992480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149968 (or 149960 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 23992480 is about 4898.2119186495. The cubic root of 23992480 is about 288.4197839233.

The spelling of 23992480 in words is "twenty-three million, nine hundred ninety-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 149953 299906 599812 749765 1199624 1499530 2399248 2999060 4798496 5998120 11996240 23992480