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311054056 = 2338881757
BaseRepresentation
bin10010100010100…
…100111011101000
3210200022011221121
4102202210323220
51114112212211
650510545024
710464626065
oct2242447350
9720264847
10311054056
1114a644575
1288208174
134c59b371
142d44dc6c
151c494271
hex128a4ee8

311054056 has 8 divisors (see below), whose sum is σ = 583226370. Its totient is φ = 155527024.

The previous prime is 311054011. The next prime is 311054057. The reversal of 311054056 is 650450113.

It can be written as a sum of positive squares in only one way, i.e., 310957956 + 96100 = 17634^2 + 310^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×3110540562 = 193509251508102272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 311054056.

It is not an unprimeable number, because it can be changed into a prime (311054057) by changing a digit.

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 as a sum of consecutive naturals, namely, 19440871 + ... + 19440886.

Almost surely, 2311054056 is an apocalyptic number.

It is an amenable number.

311054056 is a deficient number, since it is larger than the sum of its proper divisors (272172314).

311054056 is a wasteful number, since it uses less digits than its factorization.

311054056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38881763 (or 38881759 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 311054056 is about 17636.7246392294. The cubic root of 311054056 is about 677.5561468153.

The spelling of 311054056 in words is "three hundred eleven million, fifty-four thousand, fifty-six".

Divisors: 1 2 4 8 38881757 77763514 155527028 311054056