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53983904 = 2513129769
BaseRepresentation
bin1100110111101…
…1101010100000
310202120122222212
43031323222200
5102304441104
65205021252
71223566322
oct315735240
9122518885
1053983904
11285219a7
12160b4828
13b251850
147253612
154b1536e
hex337baa0

53983904 has 24 divisors (see below), whose sum is σ = 114457140. Its totient is φ = 24915456.

The previous prime is 53983901. The next prime is 53983913. The reversal of 53983904 is 40938935.

It can be written as a sum of positive squares in 2 ways, for example, as 52591504 + 1392400 = 7252^2 + 1180^2 .

It is not an unprimeable number, because it can be changed into a prime (53983901) 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, 64469 + ... + 65300.

Almost surely, 253983904 is an apocalyptic number.

It is an amenable number.

53983904 is an abundant number, since it is smaller than the sum of its proper divisors (60473236).

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

53983904 is a wasteful number, since it uses less digits than its factorization.

53983904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129792 (or 129784 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 53983904 is about 7347.3739526446. The cubic root of 53983904 is about 377.9387562564.

The spelling of 53983904 in words is "fifty-three million, nine hundred eighty-three thousand, nine hundred four".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 129769 259538 519076 1038152 1686997 2076304 3373994 4152608 6747988 13495976 26991952 53983904