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56993850 = 23252126653
BaseRepresentation
bin1101100101101…
…0100000111010
310222020120212100
43121122200322
5104042300400
65353324230
71261303554
oct331324072
9128216770
1056993850
112a198361
1217106676
13ba66894
1477d84d4
15500c100
hex365a83a

56993850 has 36 divisors (see below), whose sum is σ = 153124686. Its totient is φ = 15198240.

The previous prime is 56993831. The next prime is 56993899. The reversal of 56993850 is 5839965.

56993850 is a `hidden beast` number, since 569 + 9 + 3 + 85 + 0 = 666.

56993850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 30769209 + 26224641 = 5547^2 + 5121^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 56993796 and 56993805.

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 17 ways as a sum of consecutive naturals, for example, 62877 + ... + 63776.

Almost surely, 256993850 is an apocalyptic number.

56993850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56993850 is an abundant number, since it is smaller than the sum of its proper divisors (96130836).

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

56993850 is a wasteful number, since it uses less digits than its factorization.

56993850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126671 (or 126663 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 56993850 is about 7549.4271305841. The cubic root of 56993850 is about 384.8362715293.

The spelling of 56993850 in words is "fifty-six million, nine hundred ninety-three thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 150 225 450 126653 253306 379959 633265 759918 1139877 1266530 1899795 2279754 3166325 3799590 5699385 6332650 9498975 11398770 18997950 28496925 56993850