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55871492 = 2228574889
BaseRepresentation
bin1101010100100…
…0100000000100
310220010120021112
43111020200010
5103300341432
65313304152
71245620435
oct325104004
9126116245
1055871492
11295a1096
1216865058
13b762a71
1475c548c
154d897b2
hex3548804

55871492 has 12 divisors (see below), whose sum is σ = 97829340. Its totient is φ = 27920256.

The previous prime is 55871411. The next prime is 55871507. The reversal of 55871492 is 29417855.

It can be written as a sum of positive squares in 2 ways, for example, as 38365636 + 17505856 = 6194^2 + 4184^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8984 + ... + 13872.

It is an arithmetic number, because the mean of its divisors is an integer number (8152445).

Almost surely, 255871492 is an apocalyptic number.

It is an amenable number.

55871492 is a deficient number, since it is larger than the sum of its proper divisors (41957848).

55871492 is a wasteful number, since it uses less digits than its factorization.

55871492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7750 (or 7748 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 55871492 is about 7474.7235400381. The cubic root of 55871492 is about 382.2933612681.

The spelling of 55871492 in words is "fifty-five million, eight hundred seventy-one thousand, four hundred ninety-two".

Divisors: 1 2 4 2857 4889 5714 9778 11428 19556 13967873 27935746 55871492