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56803869 = 332817487
BaseRepresentation
bin1101100010110…
…0001000011101
310221212221021000
43120230020131
5104020210434
65345300513
71256552643
oct330541035
9127787230
1056803869
112a078651
1217034739
13b9cb275
147789193
154ec0b99
hex362c21d

56803869 has 16 divisors (see below), whose sum is σ = 84464640. Its totient is φ = 37729440.

The previous prime is 56803867. The next prime is 56803883. The reversal of 56803869 is 96830865.

56803869 is a `hidden beast` number, since 568 + 0 + 3 + 86 + 9 = 666.

It is not a de Polignac number, because 56803869 - 21 = 56803867 is a prime.

It is a super-2 number, since 2×568038692 = 6453359066738322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56803867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3844 + ... + 11330.

It is an arithmetic number, because the mean of its divisors is an integer number (5279040).

Almost surely, 256803869 is an apocalyptic number.

It is an amenable number.

56803869 is a deficient number, since it is larger than the sum of its proper divisors (27660771).

56803869 is a wasteful number, since it uses less digits than its factorization.

56803869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7777 (or 7771 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 56803869 is about 7536.8341496944. The cubic root of 56803869 is about 384.4081963001.

The spelling of 56803869 in words is "fifty-six million, eight hundred three thousand, eight hundred sixty-nine".

Divisors: 1 3 9 27 281 843 2529 7487 7587 22461 67383 202149 2103847 6311541 18934623 56803869