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56120988 = 22371160737
BaseRepresentation
bin1101011000010…
…1011010011100
310220121020112010
43112011122130
5103331332423
65322511220
71251010020
oct326053234
9126536463
1056120988
1129751590
1216965510
13b81c4b1
14764c380
154dd8693
hex358569c

56120988 has 48 divisors (see below), whose sum is σ = 163263744. Its totient is φ = 14576640.

The previous prime is 56120969. The next prime is 56120993. The reversal of 56120988 is 88902165.

56120988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×561209882 = 6299130588192288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29445 + ... + 31292.

It is an arithmetic number, because the mean of its divisors is an integer number (3401328).

Almost surely, 256120988 is an apocalyptic number.

It is an amenable number.

56120988 is an abundant number, since it is smaller than the sum of its proper divisors (107142756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56120988 is a wasteful number, since it uses less digits than its factorization.

56120988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60762 (or 60760 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 56120988 is about 7491.3942627524. The cubic root of 56120988 is about 382.8615642225.

The spelling of 56120988 in words is "fifty-six million, one hundred twenty thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 60737 121474 182211 242948 364422 425159 668107 728844 850318 1275477 1336214 1700636 2004321 2550954 2672428 4008642 4676749 5101908 8017284 9353498 14030247 18706996 28060494 56120988