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311112214 = 27235991613
BaseRepresentation
bin10010100010110…
…011001000010110
3210200102010201121
4102202303020112
51114121042324
650512114154
710465260460
oct2242631026
9720363647
10311112214
1114a684236
128823595a
134c5bb98a
142d467130
151c4a65e4
hex128b3216

311112214 has 32 divisors (see below), whose sum is σ = 557798400. Its totient is φ = 127244832.

The previous prime is 311112157. The next prime is 311112229. The reversal of 311112214 is 412211113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192072 + ... + 193684.

It is an arithmetic number, because the mean of its divisors is an integer number (17431200).

Almost surely, 2311112214 is an apocalyptic number.

311112214 is a deficient number, since it is larger than the sum of its proper divisors (246686186).

311112214 is a wasteful number, since it uses less digits than its factorization.

311112214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244.

The product of its digits is 48, while the sum is 16.

The square root of 311112214 is about 17638.3733376976. The cubic root of 311112214 is about 677.5983719034.

Adding to 311112214 its reverse (412211113), we get a palindrome (723323327).

The spelling of 311112214 in words is "three hundred eleven million, one hundred twelve thousand, two hundred fourteen".

Divisors: 1 2 7 14 23 46 161 322 599 1198 1613 3226 4193 8386 11291 13777 22582 27554 37099 74198 96439 192878 259693 519386 966187 1932374 6763309 13526618 22222301 44444602 155556107 311112214