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23990712 = 233999613
BaseRepresentation
bin101101110000…
…1000110111000
31200010212001220
41123201012320
522120200322
62214112040
7410626524
oct133410670
950125056
1023990712
11125a6639
12804b620
134c7c9b5
143286d84
15218d55c
hex16e11b8

23990712 has 16 divisors (see below), whose sum is σ = 59976840. Its totient is φ = 7996896.

The previous prime is 23990677. The next prime is 23990717. The reversal of 23990712 is 21709932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23990717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499783 + ... + 499830.

Almost surely, 223990712 is an apocalyptic number.

It is an amenable number.

23990712 is an abundant number, since it is smaller than the sum of its proper divisors (35986128).

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

23990712 is a wasteful number, since it uses less digits than its factorization.

23990712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999622 (or 999618 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 23990712 is about 4898.0314413037. The cubic root of 23990712 is about 288.4126992214.

It can be divided in two parts, 239 and 90712, that added together give a triangular number (90951 = T426).

The spelling of 23990712 in words is "twenty-three million, nine hundred ninety thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 999613 1999226 2998839 3998452 5997678 7996904 11995356 23990712