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53229631 = 721383563
BaseRepresentation
bin1100101100001…
…1100000111111
310201011100022211
43023003200333
5102111322011
65140521251
71214305300
oct313034077
9121140284
1053229631
1128057234
12159b0227
13b049430
1470d87a7
154a16b21
hex32c383f

53229631 has 12 divisors (see below), whose sum is σ = 66684072. Its totient is φ = 42115248.

The previous prime is 53229619. The next prime is 53229661. The reversal of 53229631 is 13692235.

It is not a de Polignac number, because 53229631 - 215 = 53196863 is a prime.

It is a super-2 number, since 2×532296312 = 5666787232792322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53229593 and 53229602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53229661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41145 + ... + 42418.

It is an arithmetic number, because the mean of its divisors is an integer number (5557006).

Almost surely, 253229631 is an apocalyptic number.

53229631 is a deficient number, since it is larger than the sum of its proper divisors (13454441).

53229631 is a wasteful number, since it uses less digits than its factorization.

53229631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83590 (or 83583 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 53229631 is about 7295.8639652888. The cubic root of 53229631 is about 376.1702841755.

The spelling of 53229631 in words is "fifty-three million, two hundred twenty-nine thousand, six hundred thirty-one".

Divisors: 1 7 13 49 91 637 83563 584941 1086319 4094587 7604233 53229631