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10111312988 = 227361118321
BaseRepresentation
bin10010110101010111…
…00110010001011100
3222002200012220211122
421122223212101130
5131201444003423
64351200310112
7505365512420
oct113253462134
928080186748
1010111312988
114319633117
121b62312338
13c51a9234a
146bcc5ab80
153e2a498c8
hex25aae645c

10111312988 has 12 divisors (see below), whose sum is σ = 20222626032. Its totient is φ = 4333419840.

The previous prime is 10111312979. The next prime is 10111313021. The reversal of 10111312988 is 88921311101.

10111312988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

10111312988 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 180559133 + ... + 180559188.

It is an arithmetic number, because the mean of its divisors is an integer number (1685218836).

Almost surely, 210111312988 is an apocalyptic number.

It is an amenable number.

10111312988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10111312988 is a wasteful number, since it uses less digits than its factorization.

10111312988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361118332 (or 361118330 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 35.

The spelling of 10111312988 in words is "ten billion, one hundred eleven million, three hundred twelve thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 28 361118321 722236642 1444473284 2527828247 5055656494 10111312988