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311315058 = 23229896701
BaseRepresentation
bin10010100011100…
…100101001110010
3210200210102222100
4102203210221302
51114144040213
650520321230
710500064035
oct2243445162
9720712870
10311315058
1114a80267a
1288313216
134c6600c2
142d4bb01c
151c4e6773
hex128e4a72

311315058 has 48 divisors (see below), whose sum is σ = 705720600. Its totient is φ = 99052800.

The previous prime is 311315047. The next prime is 311315129. The reversal of 311315058 is 850513113.

It can be written as a sum of positive squares in 4 ways, for example, as 213364449 + 97950609 = 14607^2 + 9897^2 .

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 23 ways as a sum of consecutive naturals, for example, 43108 + ... + 49808.

Almost surely, 2311315058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311315058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352860300).

311315058 is an abundant number, since it is smaller than the sum of its proper divisors (394405542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311315058 is a wasteful number, since it uses less digits than its factorization.

311315058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6827 (or 6824 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 311315058 is about 17644.1224774711. The cubic root of 311315058 is about 677.7456037780.

The spelling of 311315058 in words is "three hundred eleven million, three hundred fifteen thousand, fifty-eight".

Divisors: 1 2 3 6 9 18 29 58 87 89 174 178 261 267 522 534 801 1602 2581 5162 6701 7743 13402 15486 20103 23229 40206 46458 60309 120618 194329 388658 582987 596389 1165974 1192778 1748961 1789167 3497922 3578334 5367501 10735002 17295281 34590562 51885843 103771686 155657529 311315058