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53389161 = 3273127337
BaseRepresentation
bin1100101110101…
…0011101101001
310201110110011100
43023222131221
5102131423121
65144152013
71215541350
oct313523551
9121413140
1053389161
1128156081
1215a68609
13b0a3c27
14713a997
154a49026
hex32ea769

53389161 has 24 divisors (see below), whose sum is σ = 90980864. Its totient is φ = 29522880.

The previous prime is 53389139. The next prime is 53389177. The reversal of 53389161 is 16198335.

It is a happy number.

It is not a de Polignac number, because 53389161 - 26 = 53389097 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53384161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11716 + ... + 15621.

Almost surely, 253389161 is an apocalyptic number.

53389161 is the 3906-th nonagonal number.

It is an amenable number.

53389161 is a deficient number, since it is larger than the sum of its proper divisors (37591703).

53389161 is a wasteful number, since it uses less digits than its factorization.

53389161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27381 (or 27378 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 53389161 is about 7306.7886927158. The cubic root of 53389161 is about 376.5457053660.

The spelling of 53389161 in words is "fifty-three million, three hundred eighty-nine thousand, one hundred sixty-one".

Divisors: 1 3 7 9 21 31 63 93 217 279 651 1953 27337 82011 191359 246033 574077 847447 1722231 2542341 5932129 7627023 17796387 53389161