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53053965 = 3251178977
BaseRepresentation
bin1100101001100…
…0101000001101
310200211102100200
43022120220031
5102040211330
65133044113
71212644166
oct312305015
9120742320
1053053965
1127a47258
1215926639
13acb74a3
14709076d
1549cea60
hex3298a0d

53053965 has 12 divisors (see below), whose sum is σ = 91960284. Its totient is φ = 28295424.

The previous prime is 53053943. The next prime is 53053993. The reversal of 53053965 is 56935035.

It can be written as a sum of positive squares in 2 ways, for example, as 17089956 + 35964009 = 4134^2 + 5997^2 .

It is not a de Polignac number, because 53053965 - 27 = 53053837 is a prime.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 589444 + ... + 589533.

It is an arithmetic number, because the mean of its divisors is an integer number (7663357).

Almost surely, 253053965 is an apocalyptic number.

It is an amenable number.

53053965 is a deficient number, since it is larger than the sum of its proper divisors (38906319).

53053965 is a wasteful number, since it uses less digits than its factorization.

53053965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178988 (or 1178985 counting only the distinct ones).

The product of its (nonzero) digits is 60750, while the sum is 36.

The square root of 53053965 is about 7283.8152777236. The cubic root of 53053965 is about 375.7560214599.

The spelling of 53053965 in words is "fifty-three million, fifty-three thousand, nine hundred sixty-five".

Divisors: 1 3 5 9 15 45 1178977 3536931 5894885 10610793 17684655 53053965