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53442165 = 357508973
BaseRepresentation
bin1100101111011…
…1011001110101
310201120010212110
43023313121311
5102140122130
65145241233
71216152030
oct313673165
9121503773
1053442165
1128191987
1215a93219
13b0c20aa
147152017
154a59ab0
hex32f7675

53442165 has 16 divisors (see below), whose sum is σ = 97723008. Its totient is φ = 24430656.

The previous prime is 53442143. The next prime is 53442199. The reversal of 53442165 is 56124435.

It is not a de Polignac number, because 53442165 - 28 = 53441909 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254382 + ... + 254591.

It is an arithmetic number, because the mean of its divisors is an integer number (6107688).

Almost surely, 253442165 is an apocalyptic number.

It is an amenable number.

53442165 is a deficient number, since it is larger than the sum of its proper divisors (44280843).

53442165 is a wasteful number, since it uses less digits than its factorization.

53442165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508988.

The product of its digits is 14400, while the sum is 30.

The square root of 53442165 is about 7310.4148309108. The cubic root of 53442165 is about 376.6702738928.

The spelling of 53442165 in words is "fifty-three million, four hundred forty-two thousand, one hundred sixty-five".

Divisors: 1 3 5 7 15 21 35 105 508973 1526919 2544865 3562811 7634595 10688433 17814055 53442165