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313112012242 = 21132913819049
BaseRepresentation
bin1001000111001101110…
…11100010010111010010
31002221012022111021010011
410203212323202113102
520112223133342432
6355501445025134
731423131122311
oct4434673422722
91087168437104
10313112012242
11110876628157
12508246b51aa
13236ac48b833
1411224708278
158228889847
hex48e6ee25d2

313112012242 has 8 divisors (see below), whose sum is σ = 469709509500. Its totient is φ = 156542175744.

The previous prime is 313112012207. The next prime is 313112012251. The reversal of 313112012242 is 242210211313.

It can be written as a sum of positive squares in 2 ways, for example, as 308834721441 + 4277290801 = 555729^2 + 65401^2 .

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

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, 6886867 + ... + 6932182.

Almost surely, 2313112012242 is an apocalyptic number.

313112012242 is a deficient number, since it is larger than the sum of its proper divisors (156597497258).

313112012242 is a wasteful number, since it uses less digits than its factorization.

313112012242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13830380.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 313112012242 its reverse (242210211313), we get a palindrome (555322223555).

The spelling of 313112012242 in words is "three hundred thirteen billion, one hundred twelve million, twelve thousand, two hundred forty-two".

Divisors: 1 2 11329 22658 13819049 27638098 156556006121 313112012242