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53612831 = 1573131091
BaseRepresentation
bin1100110010000…
…1000100011111
310201212210222102
43030201010133
5102211102311
65153035315
71220462426
oct314410437
9121783872
1053612831
1128299128
1215b55b3b
13b15198c
1471982bd
154a9043b
hex332111f

53612831 has 8 divisors (see below), whose sum is σ = 54176304. Its totient is φ = 53052480.

The previous prime is 53612821. The next prime is 53612837. The reversal of 53612831 is 13821635.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53612831 is a prime.

It is a super-2 number, since 2×536128312 = 5748671295669122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53612794 and 53612803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53612837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48596 + ... + 49686.

It is an arithmetic number, because the mean of its divisors is an integer number (6772038).

Almost surely, 253612831 is an apocalyptic number.

53612831 is a deficient number, since it is larger than the sum of its proper divisors (563473).

53612831 is a wasteful number, since it uses less digits than its factorization.

53612831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561.

The product of its digits is 4320, while the sum is 29.

The square root of 53612831 is about 7322.0783251752. The cubic root of 53612831 is about 377.0708096842.

It can be divided in two parts, 5361 and 2831, that added together give a 13-th power (8192 = 213).

The spelling of 53612831 in words is "fifty-three million, six hundred twelve thousand, eight hundred thirty-one".

Divisors: 1 157 313 1091 49141 171287 341483 53612831