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12103868940 = 2235201731149
BaseRepresentation
bin10110100010111001…
…00110001000001100
31011020112120020202020
423101130212020030
5144242042301230
65321015530140
7605642121432
oct132134461014
934215506666
1012103868940
115151355979
122419689950
1311ab831337
1482b738d52
154ac93b810
hex2d172620c

12103868940 has 24 divisors (see below), whose sum is σ = 33890833200. Its totient is φ = 3227698368.

The previous prime is 12103868929. The next prime is 12103868951. The reversal of 12103868940 is 4986830121.

It is an interprime number because it is at equal distance from previous prime (12103868929) and next prime (12103868951).

It is a junction number, because it is equal to n+sod(n) for n = 12103868892 and 12103868901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100865515 + ... + 100865634.

It is an arithmetic number, because the mean of its divisors is an integer number (1412118050).

Almost surely, 212103868940 is an apocalyptic number.

12103868940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103868940 is an abundant number, since it is smaller than the sum of its proper divisors (21786964260).

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

12103868940 is a wasteful number, since it uses less digits than its factorization.

12103868940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201731161 (or 201731159 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 12103868940 in words is "twelve billion, one hundred three million, eight hundred sixty-eight thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 201731149 403462298 605193447 806924596 1008655745 1210386894 2017311490 2420773788 3025967235 4034622980 6051934470 12103868940