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53996920 = 2357119013
BaseRepresentation
bin1100110111111…
…0110101111000
310202121022211221
43031332311320
5102310400140
65205201424
71223652265
oct315766570
9122538757
1053996920
112853075a
1216100274
13b257753
14725826c
154b1914a
hex337ed78

53996920 has 32 divisors (see below), whose sum is σ = 123210720. Its totient is φ = 21293440.

The previous prime is 53996911. The next prime is 53996953. The reversal of 53996920 is 2969935.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6667 + ... + 12346.

It is an arithmetic number, because the mean of its divisors is an integer number (3850335).

Almost surely, 253996920 is an apocalyptic number.

It is an amenable number.

53996920 is an abundant number, since it is smaller than the sum of its proper divisors (69213800).

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

53996920 is a wasteful number, since it uses less digits than its factorization.

53996920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19095 (or 19091 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 43.

The square root of 53996920 is about 7348.2596579054. The cubic root of 53996920 is about 377.9691286155.

The spelling of 53996920 in words is "fifty-three million, nine hundred ninety-six thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 19013 38026 76052 95065 152104 190130 380260 760520 1349923 2699846 5399692 6749615 10799384 13499230 26998460 53996920