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56994955 = 511398991
BaseRepresentation
bin1101100101101…
…0110010001011
310222020122101021
43121122302023
5104042314310
65353333311
71261310023
oct331326213
9128218337
1056994955
112a199176
1217107237
13ba67234
1477d8a83
15500c5da
hex365ac8b

56994955 has 4 divisors (see below), whose sum is σ = 68393952. Its totient is φ = 45595960.

The previous prime is 56994953. The next prime is 56994979. The reversal of 56994955 is 55949965.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 56994955 - 21 = 56994953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56994953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5699491 + ... + 5699500.

It is an arithmetic number, because the mean of its divisors is an integer number (17098488).

Almost surely, 256994955 is an apocalyptic number.

56994955 is a deficient number, since it is larger than the sum of its proper divisors (11398997).

56994955 is a wasteful number, since it uses less digits than its factorization.

56994955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11398996.

The product of its digits is 2187000, while the sum is 52.

The square root of 56994955 is about 7549.5003145904. The cubic root of 56994955 is about 384.8387585891.

It can be divided in two parts, 5699495 and 5, that multiplied together give a triangular number (28497475 = T7549).

The spelling of 56994955 in words is "fifty-six million, nine hundred ninety-four thousand, nine hundred fifty-five".

Divisors: 1 5 11398991 56994955