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10311220120 = 2351715163559
BaseRepresentation
bin10011001101001100…
…01011101110011000
3222121121101020212111
421212212023232120
5132104133020440
64423101122104
7513343632145
oct114646135630
928547336774
1010311220120
114411462323
121bb9259334
13c843162a6
146db6173cc
154053864ea
hex26698bb98

10311220120 has 32 divisors (see below), whose sum is σ = 24564967200. Its totient is φ = 3881870848.

The previous prime is 10311220039. The next prime is 10311220141. The reversal of 10311220120 is 2102211301.

10311220120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 10311220120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7581100 + ... + 7582459.

It is an arithmetic number, because the mean of its divisors is an integer number (767655225).

Almost surely, 210311220120 is an apocalyptic number.

10311220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10311220120 is an abundant number, since it is smaller than the sum of its proper divisors (14253747080).

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

10311220120 is a wasteful number, since it uses less digits than its factorization.

10311220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15163587 (or 15163583 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10311220120 its reverse (2102211301), we get a palindrome (12413431421).

The spelling of 10311220120 in words is "ten billion, three hundred eleven million, two hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 15163559 30327118 60654236 75817795 121308472 151635590 257780503 303271180 515561006 606542360 1031122012 1288902515 2062244024 2577805030 5155610060 10311220120