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31313851122 = 235218975187
BaseRepresentation
bin11101001010011100…
…110111001011110010
32222211022112110021210
4131022130313023302
51003112321213442
622215124300550
72155662225411
oct351234671362
988738473253
1031313851122
1112309941904
12609ab41756
132c5063c7b8
141730b33478
15c3415319c
hex74a7372f2

31313851122 has 8 divisors (see below), whose sum is σ = 62627702256. Its totient is φ = 10437950372.

The previous prime is 31313851103. The next prime is 31313851133. The reversal of 31313851122 is 22115831313.

It is a sphenic number, since it is the product of 3 distinct primes.

31313851122 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 31313851122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2609487588 + ... + 2609487599.

It is an arithmetic number, because the mean of its divisors is an integer number (7828462782).

Almost surely, 231313851122 is an apocalyptic number.

31313851122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31313851122 is a wasteful number, since it uses less digits than its factorization.

31313851122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218975192.

The product of its digits is 4320, while the sum is 30.

The spelling of 31313851122 in words is "thirty-one billion, three hundred thirteen million, eight hundred fifty-one thousand, one hundred twenty-two".

Divisors: 1 2 3 6 5218975187 10437950374 15656925561 31313851122