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56761955 = 511352391
BaseRepresentation
bin1101100010000…
…1111001100011
310221210210202122
43120201321203
5104012340310
65344334455
71256316515
oct330417143
9127723678
1056761955
112a04a108
121701442b
13b9b5173
147777bb5
154eb3555
hex3621e63

56761955 has 4 divisors (see below), whose sum is σ = 68114352. Its totient is φ = 45409560.

The previous prime is 56761927. The next prime is 56761967. The reversal of 56761955 is 55916765.

56761955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55916765 = 511183353.

It is not a de Polignac number, because 56761955 - 218 = 56499811 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 5676191 + ... + 5676200.

It is an arithmetic number, because the mean of its divisors is an integer number (17028588).

Almost surely, 256761955 is an apocalyptic number.

56761955 is a deficient number, since it is larger than the sum of its proper divisors (11352397).

56761955 is a wasteful number, since it uses less digits than its factorization.

56761955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11352396.

The product of its digits is 283500, while the sum is 44.

The square root of 56761955 is about 7534.0530260943. The cubic root of 56761955 is about 384.3136249858.

The spelling of 56761955 in words is "fifty-six million, seven hundred sixty-one thousand, nine hundred fifty-five".

Divisors: 1 5 11352391 56761955