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311338196 = 22135987273
BaseRepresentation
bin10010100011101…
…010010011010100
3210200211121201022
4102203222103110
51114200310241
650521020312
710500221351
oct2243522324
9720747638
10311338196
1114a818aa4
1288324698
134c66a7b0
142d4c5628
151c4ed54b
hex128ea4d4

311338196 has 12 divisors (see below), whose sum is σ = 586752852. Its totient is φ = 143694528.

The previous prime is 311338193. The next prime is 311338231. The reversal of 311338196 is 691833113.

It can be written as a sum of positive squares in 2 ways, for example, as 128006596 + 183331600 = 11314^2 + 13540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311338193) 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 in 3 ways as a sum of consecutive naturals, for example, 2993585 + ... + 2993688.

It is an arithmetic number, because the mean of its divisors is an integer number (48896071).

Almost surely, 2311338196 is an apocalyptic number.

It is an amenable number.

311338196 is a deficient number, since it is larger than the sum of its proper divisors (275414656).

311338196 is a wasteful number, since it uses less digits than its factorization.

311338196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5987290 (or 5987288 counting only the distinct ones).

The product of its digits is 11664, while the sum is 35.

The square root of 311338196 is about 17644.7781510565. The cubic root of 311338196 is about 677.7623941525.

The spelling of 311338196 in words is "three hundred eleven million, three hundred thirty-eight thousand, one hundred ninety-six".

Divisors: 1 2 4 13 26 52 5987273 11974546 23949092 77834549 155669098 311338196