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56988069 = 331915953
BaseRepresentation
bin1101100101100…
…1000110100101
310222020021221020
43121121012211
5104042104234
65353241353
71261250655
oct331310645
9128207836
1056988069
112a193a86
1217103259
13ba64068
1477d6365
15500a549
hex36591a5

56988069 has 8 divisors (see below), whose sum is σ = 76020672. Its totient is φ = 37973760.

The previous prime is 56988037. The next prime is 56988119. The reversal of 56988069 is 96088965.

56988069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56988069 - 25 = 56988037 is a prime.

It is a super-2 number, since 2×569880692 = 6495280016697522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56987069) 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 7 ways as a sum of consecutive naturals, for example, 6597 + ... + 12549.

It is an arithmetic number, because the mean of its divisors is an integer number (9502584).

Almost surely, 256988069 is an apocalyptic number.

It is an amenable number.

56988069 is a deficient number, since it is larger than the sum of its proper divisors (19032603).

56988069 is a wasteful number, since it uses less digits than its factorization.

56988069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9147.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 56988069 is about 7549.0442441411. The cubic root of 56988069 is about 384.8232595189.

The spelling of 56988069 in words is "fifty-six million, nine hundred eighty-eight thousand, sixty-nine".

Divisors: 1 3 3191 5953 9573 17859 18996023 56988069