Search a number
-
+
10031110212 = 223835925851
BaseRepresentation
bin10010101011110011…
…01001100001000100
3221220002022012022110
421111321221201010
5131020431011322
64335213301020
7503403013164
oct112571514104
927802265273
1010031110212
114288333632
121b3b494770
13c3b290896
146b23405a4
153da9a5c0c
hex255e69844

10031110212 has 12 divisors (see below), whose sum is σ = 23405923856. Its totient is φ = 3343703400.

The previous prime is 10031110147. The next prime is 10031110213. The reversal of 10031110212 is 21201113001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 835925851 = 10031110212 / (1 + 0 + 0 + 3 + 1 + 1 + 1 + 0 + 2 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (10031110213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417962914 + ... + 417962937.

Almost surely, 210031110212 is an apocalyptic number.

10031110212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10031110212 is an abundant number, since it is smaller than the sum of its proper divisors (13374813644).

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

10031110212 is a wasteful number, since it uses less digits than its factorization.

10031110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835925858 (or 835925856 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 10031110212 its reverse (21201113001), we get a palindrome (31232223213).

The spelling of 10031110212 in words is "ten billion, thirty-one million, one hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 835925851 1671851702 2507777553 3343703404 5015555106 10031110212