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56485201161 = 318828400387
BaseRepresentation
bin110100100110110001…
…111100010100001001
312101210112212112011110
4310212301330110021
51411140202414121
641540545520533
74036520200524
oct644661742411
9171715775143
1056485201161
1121a56472734
12ab44943149
13543250b96c
142a3bb61bbb
151708dc0d76
hexd26c7c509

56485201161 has 4 divisors (see below), whose sum is σ = 75313601552. Its totient is φ = 37656800772.

The previous prime is 56485201159. The next prime is 56485201207. The reversal of 56485201161 is 16110258465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56485201161 - 21 = 56485201159 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56485201111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9414200191 + ... + 9414200196.

It is an arithmetic number, because the mean of its divisors is an integer number (18828400388).

Almost surely, 256485201161 is an apocalyptic number.

It is an amenable number.

56485201161 is a deficient number, since it is larger than the sum of its proper divisors (18828400391).

56485201161 is a wasteful number, since it uses less digits than its factorization.

56485201161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18828400390.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 56485201161 in words is "fifty-six billion, four hundred eighty-five million, two hundred one thousand, one hundred sixty-one".

Divisors: 1 3 18828400387 56485201161