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53799831 = 3241145799
BaseRepresentation
bin1100110100111…
…0101110010111
310202020022111100
43031032232113
5102233043311
65201041143
71222201551
oct315165627
9122208440
1053799831
1128406678
12160261b3
13b1b8b27
1472064d1
154acaa56
hex334eb97

53799831 has 12 divisors (see below), whose sum is σ = 79606800. Its totient is φ = 34991520.

The previous prime is 53799827. The next prime is 53799833. The reversal of 53799831 is 13899735.

It is a happy number.

It is not a de Polignac number, because 53799831 - 22 = 53799827 is a prime.

It is a super-2 number, since 2×537998312 = 5788843631257122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53799833) 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, 72531 + ... + 73268.

It is an arithmetic number, because the mean of its divisors is an integer number (6633900).

Almost surely, 253799831 is an apocalyptic number.

53799831 is a deficient number, since it is larger than the sum of its proper divisors (25806969).

53799831 is a wasteful number, since it uses less digits than its factorization.

53799831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145846 (or 145843 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 53799831 is about 7334.8368080006. The cubic root of 53799831 is about 377.5087049730.

The spelling of 53799831 in words is "fifty-three million, seven hundred ninety-nine thousand, eight hundred thirty-one".

Divisors: 1 3 9 41 123 369 145799 437397 1312191 5977759 17933277 53799831