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53971057 = 721136541
BaseRepresentation
bin1100110111100…
…0100001110001
310202120000101001
43031320201301
5102304033212
65204442001
71223514010
oct315704161
9122500331
1053971057
1128513288
12160a9301
13b248a4a
14724ca77
154b11657
hex3378871

53971057 has 8 divisors (see below), whose sum is σ = 61975232. Its totient is φ = 46040400.

The previous prime is 53971051. The next prime is 53971069. The reversal of 53971057 is 75017935.

It is a happy number.

53971057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53971057 - 211 = 53969009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53971051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16794 + ... + 19747.

It is an arithmetic number, because the mean of its divisors is an integer number (7746904).

Almost surely, 253971057 is an apocalyptic number.

It is an amenable number.

53971057 is a deficient number, since it is larger than the sum of its proper divisors (8004175).

53971057 is a wasteful number, since it uses less digits than its factorization.

53971057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36759.

The product of its (nonzero) digits is 33075, while the sum is 37.

The square root of 53971057 is about 7346.4996426870. The cubic root of 53971057 is about 377.9087734649.

The spelling of 53971057 in words is "fifty-three million, nine hundred seventy-one thousand, fifty-seven".

Divisors: 1 7 211 1477 36541 255787 7710151 53971057