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103103131992 = 2337919667801
BaseRepresentation
bin110000000000101101…
…1001111000101011000
3100212010102201210002020
41200001123033011120
53142123400210432
6115210453534440
710306664106360
oct1400133170530
9325112653066
10103103131992
113a7a90370a3
1217b95044420
139951693213
144dc12319a0
152a368a122c
hex18016cf158

103103131992 has 64 divisors (see below), whose sum is σ = 294901363200. Its totient is φ = 29425939200.

The previous prime is 103103131969. The next prime is 103103131993. The reversal of 103103131992 is 299131301301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103103131993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179509 + ... + 488292.

It is an arithmetic number, because the mean of its divisors is an integer number (4607833800).

Almost surely, 2103103131992 is an apocalyptic number.

103103131992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103103131992 is an abundant number, since it is smaller than the sum of its proper divisors (191798231208).

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

103103131992 is a wasteful number, since it uses less digits than its factorization.

103103131992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668736 (or 668732 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 33.

The spelling of 103103131992 in words is "one hundred three billion, one hundred three million, one hundred thirty-one thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 919 1838 2757 3676 5514 6433 7352 11028 12866 19299 22056 25732 38598 51464 77196 154392 667801 1335602 2003403 2671204 4006806 4674607 5342408 8013612 9349214 14023821 16027224 18698428 28047642 37396856 56095284 112190568 613709119 1227418238 1841127357 2454836476 3682254714 4295963833 4909672952 7364509428 8591927666 12887891499 14729018856 17183855332 25775782998 34367710664 51551565996 103103131992