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55915268 = 2213978817
BaseRepresentation
bin1101010101001…
…1001100000100
310220012210022212
43111103030010
5103303242033
65314242552
71246162163
oct325231404
9126183285
1055915268
1129620a72
1216886458
13b779976
1475d73da
154d97748
hex3553304

55915268 has 6 divisors (see below), whose sum is σ = 97851726. Its totient is φ = 27957632.

The previous prime is 55915253. The next prime is 55915273. The reversal of 55915268 is 86251955.

It can be written as a sum of positive squares in only one way, i.e., 40170244 + 15745024 = 6338^2 + 3968^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6989405 + ... + 6989412.

It is an arithmetic number, because the mean of its divisors is an integer number (16308621).

Almost surely, 255915268 is an apocalyptic number.

It is an amenable number.

55915268 is a deficient number, since it is larger than the sum of its proper divisors (41936458).

55915268 is a wasteful number, since it uses less digits than its factorization.

55915268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13978821 (or 13978819 counting only the distinct ones).

The product of its digits is 108000, while the sum is 41.

The square root of 55915268 is about 7477.6512355151. The cubic root of 55915268 is about 382.3931790506.

The spelling of 55915268 in words is "fifty-five million, nine hundred fifteen thousand, two hundred sixty-eight".

Divisors: 1 2 4 13978817 27957634 55915268