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313311210212 = 227111378249553
BaseRepresentation
bin1001000111100101100…
…11011010101011100100
31002221201012022120100202
410203302303122223210
520113130132211322
6355533322330032
731431100226360
oct4436263325344
91087635276322
10313311210212
11110969012580
125087b359918
1323711824a60
1411242d5c2a0
15823b0d6292
hex48f2cdaae4

313311210212 has 48 divisors (see below), whose sum is σ = 736171804032. Its totient is φ = 112679354880.

The previous prime is 313311210203. The next prime is 313311210221. The reversal of 313311210212 is 212012113313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (313311210203) and next prime (313311210221).

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, 39120773 + ... + 39128780.

It is an arithmetic number, because the mean of its divisors is an integer number (15336912584).

Almost surely, 2313311210212 is an apocalyptic number.

It is an amenable number.

313311210212 is an abundant number, since it is smaller than the sum of its proper divisors (422860593820).

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

313311210212 is a wasteful number, since it uses less digits than its factorization.

313311210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78249588 (or 78249586 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 313311210212 its reverse (212012113313), we get a palindrome (525323323525).

The spelling of 313311210212 in words is "three hundred thirteen billion, three hundred eleven million, two hundred ten thousand, two hundred twelve".

Divisors: 1 2 4 7 11 13 14 22 26 28 44 52 77 91 143 154 182 286 308 364 572 1001 2002 4004 78249553 156499106 312998212 547746871 860745083 1017244189 1095493742 1721490166 2034488378 2190987484 3442980332 4068976756 6025215581 7120709323 11189686079 12050431162 14241418646 22379372158 24100862324 28482837292 44758744316 78327802553 156655605106 313311210212