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23389072 = 247229833
BaseRepresentation
bin101100100111…
…0001110010000
31122000021202221
41121032032100
521441422242
62153150424
7402542500
oct131161620
948007687
1023389072
1112225613
1279bb414
134acbbb5
14316ba00
1520c0167
hex164e390

23389072 has 30 divisors (see below), whose sum is σ = 52716678. Its totient is φ = 10023552.

The previous prime is 23389063. The next prime is 23389103. The reversal of 23389072 is 27098332.

It can be written as a sum of positive squares in only one way, i.e., 19324816 + 4064256 = 4396^2 + 2016^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14133 + ... + 15700.

Almost surely, 223389072 is an apocalyptic number.

It is an amenable number.

23389072 is an abundant number, since it is smaller than the sum of its proper divisors (29327606).

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

23389072 is a wasteful number, since it uses less digits than its factorization.

23389072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29855 (or 29842 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 23389072 is about 4836.2249740888. The cubic root of 23389072 is about 285.9813181596.

The spelling of 23389072 in words is "twenty-three million, three hundred eighty-nine thousand, seventy-two".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 29833 59666 119332 208831 238664 417662 477328 835324 1461817 1670648 2923634 3341296 5847268 11694536 23389072