Search a number
-
+
31013312094 = 2321722961783
BaseRepresentation
bin11100111000100010…
…011001011001011110
32222001101000111020200
4130320202121121132
51002003401441334
622125230524330
72145352542342
oct347042313136
988041014220
1031013312094
111217522a446
1260163666a6
132c032b355b
141702c5d622
15c17a89799
hex73889965e

31013312094 has 12 divisors (see below), whose sum is σ = 67195509576. Its totient is φ = 10337770692.

The previous prime is 31013312093. The next prime is 31013312111. The reversal of 31013312094 is 49021331013.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013312093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 861480874 + ... + 861480909.

It is an arithmetic number, because the mean of its divisors is an integer number (5599625798).

Almost surely, 231013312094 is an apocalyptic number.

31013312094 is an abundant number, since it is smaller than the sum of its proper divisors (36182197482).

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

31013312094 is a wasteful number, since it uses less digits than its factorization.

31013312094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722961791 (or 1722961788 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 31013312094 in words is "thirty-one billion, thirteen million, three hundred twelve thousand, ninety-four".

Divisors: 1 2 3 6 9 18 1722961783 3445923566 5168885349 10337770698 15506656047 31013312094