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10111980042 = 2321245145119
BaseRepresentation
bin10010110101011100…
…01001001000001010
3222002201110210212100
421122232021020022
5131202131330132
64351222454230
7505404261243
oct113256111012
928081423770
1010111980042
114319a492aa
121b62594376
13c51c66b58
146bcd91cca
153e2b2c37c
hex25ab8920a

10111980042 has 24 divisors (see below), whose sum is σ = 21911535360. Its totient is φ = 3370314600.

The previous prime is 10111980041. The next prime is 10111980059. The reversal of 10111980042 is 24008911101.

It is a junction number, because it is equal to n+sod(n) for n = 10111979988 and 10111980015.

It is not an unprimeable number, because it can be changed into a prime (10111980041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201559 + ... + 246677.

It is an arithmetic number, because the mean of its divisors is an integer number (912980640).

Almost surely, 210111980042 is an apocalyptic number.

10111980042 is an abundant number, since it is smaller than the sum of its proper divisors (11799555318).

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

10111980042 is a wasteful number, since it uses less digits than its factorization.

10111980042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57578 (or 57575 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The spelling of 10111980042 in words is "ten billion, one hundred eleven million, nine hundred eighty thousand, forty-two".

Divisors: 1 2 3 6 9 18 12451 24902 37353 45119 74706 90238 112059 135357 224118 270714 406071 812142 561776669 1123553338 1685330007 3370660014 5055990021 10111980042