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311870870116 = 221324724572
BaseRepresentation
bin1001000100111001111…
…00111101001001100100
31002210222211001201012021
410202130330331021210
520102202420320431
6355134351032524
731350310441201
oct4423474751144
91083884051167
10311870870116
11110299a80763
1250538b0b744
13235422c0a00
1411147948ca8
1581a4923b11
hex489cf3d264

311870870116 has 81 divisors (see below), whose sum is σ = 605151956619. Its totient is φ = 140569573248.

The previous prime is 311870870111. The next prime is 311870870167. The reversal of 311870870116 is 611078078113.

The square root of 311870870116 is 558454.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 104980516 + 311765889600 = 10246^2 + 558360^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311870870111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 682430560 + ... + 682431016.

Almost surely, 2311870870116 is an apocalyptic number.

311870870116 is the 558454-th square number.

It is an amenable number.

311870870116 is a deficient number, since it is larger than the sum of its proper divisors (293281086503).

311870870116 is an equidigital number, since it uses as much as digits as its factorization.

311870870116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 43.

The spelling of 311870870116 in words is "three hundred eleven billion, eight hundred seventy million, eight hundred seventy thousand, one hundred sixteen".

Divisors: 1 2 4 13 26 47 52 94 169 188 338 457 611 676 914 1222 1828 2209 2444 4418 5941 7943 8836 11882 15886 21479 23764 28717 31772 42958 57434 77233 85916 114868 154466 208849 279227 308932 373321 417698 558454 746642 835396 1009513 1116908 1493284 2019026 2715037 3629951 4038052 5430074 7259902 9815903 10860148 13123669 14519804 19631806 26247338 35295481 39263612 52494676 70590962 127606739 141181924 170607697 255213478 341215394 461347441 510426956 682430788 922694882 1658887607 1845389764 3317775214 5997516733 6635550428 11995033466 23990066932 77967717529 155935435058 311870870116