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10031111320 = 235250777783
BaseRepresentation
bin10010101011110011…
…01001110010011000
3221220002022020211111
421111321221302120
5131020431030240
64335213310104
7503403016336
oct112571516230
927802266744
1010031111320
11428833444a
121b3b495334
13c3b291239
146b2340b56
153da9a61ea
hex255e69c98

10031111320 has 16 divisors (see below), whose sum is σ = 22570000560. Its totient is φ = 4012444512.

The previous prime is 10031111287. The next prime is 10031111323. The reversal of 10031111320 is 2311113001.

10031111320 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 10031111320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031111323) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 125388852 + ... + 125388931.

It is an arithmetic number, because the mean of its divisors is an integer number (1410625035).

Almost surely, 210031111320 is an apocalyptic number.

10031111320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10031111320 is an abundant number, since it is smaller than the sum of its proper divisors (12538889240).

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

10031111320 is a wasteful number, since it uses less digits than its factorization.

10031111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250777794 (or 250777790 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10031111320 its reverse (2311113001), we get a palindrome (12342224321).

The spelling of 10031111320 in words is "ten billion, thirty-one million, one hundred eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 250777783 501555566 1003111132 1253888915 2006222264 2507777830 5015555660 10031111320