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56984965 = 543326321
BaseRepresentation
bin1101100101100…
…0010110000101
310222020010200021
43121120112011
5104042004330
65353215141
71261235632
oct331302605
9128203607
1056984965
112a191714
12171014b1
13ba6281b
1477d5189
15500967a
hex3658585

56984965 has 8 divisors (see below), whose sum is σ = 68542488. Its totient is φ = 45480960.

The previous prime is 56984959. The next prime is 56985011. The reversal of 56984965 is 56948965.

It can be written as a sum of positive squares in 4 ways, for example, as 7409284 + 49575681 = 2722^2 + 7041^2 .

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

It is not a de Polignac number, because 56984965 - 215 = 56952197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10996 + ... + 15325.

It is an arithmetic number, because the mean of its divisors is an integer number (8567811).

Almost surely, 256984965 is an apocalyptic number.

It is an amenable number.

56984965 is a deficient number, since it is larger than the sum of its proper divisors (11557523).

56984965 is a wasteful number, since it uses less digits than its factorization.

56984965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26759.

The product of its digits is 2332800, while the sum is 52.

The square root of 56984965 is about 7548.8386524021. The cubic root of 56984965 is about 384.8162725998.

The spelling of 56984965 in words is "fifty-six million, nine hundred eighty-four thousand, nine hundred sixty-five".

Divisors: 1 5 433 2165 26321 131605 11396993 56984965