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56251120 = 245703139
BaseRepresentation
bin1101011010010…
…1001011110000
310220211212000211
43112211023300
5103400013440
65325353504
71252061302
oct326451360
9126755024
1056251120
1129830332
1216a08894
13b8667b3
147683972
154e11eea
hex35a52f0

56251120 has 20 divisors (see below), whose sum is σ = 130784040. Its totient is φ = 22500416.

The previous prime is 56251109. The next prime is 56251121. The reversal of 56251120 is 2115265.

56251120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 56251091 and 56251100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56251121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 351490 + ... + 351649.

It is an arithmetic number, because the mean of its divisors is an integer number (6539202).

Almost surely, 256251120 is an apocalyptic number.

It is an amenable number.

56251120 is an abundant number, since it is smaller than the sum of its proper divisors (74532920).

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

56251120 is a wasteful number, since it uses less digits than its factorization.

56251120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703152 (or 703146 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 56251120 is about 7500.0746662950. The cubic root of 56251120 is about 383.1572591919.

Adding to 56251120 its reverse (2115265), we get a palindrome (58366385).

The spelling of 56251120 in words is "fifty-six million, two hundred fifty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 703139 1406278 2812556 3515695 5625112 7031390 11250224 14062780 28125560 56251120