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123940111908 = 22310328342659
BaseRepresentation
bin111001101101101101…
…0000000011000100100
3102211220121012000221010
41303123122000120210
54012312132040113
6132534242422220
711645231366064
oct1633332003044
9384817160833
10123940111908
1148620a64558
122002b361970
13b8c259aa32
145dda74b3a4
153355d4b1c3
hex1cdb680624

123940111908 has 12 divisors (see below), whose sum is σ = 289193594480. Its totient is φ = 41313370632.

The previous prime is 123940111873. The next prime is 123940111931. The reversal of 123940111908 is 809111049321.

123940111908 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1239401119082 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5164171318 + ... + 5164171341.

Almost surely, 2123940111908 is an apocalyptic number.

It is an amenable number.

123940111908 is an abundant number, since it is smaller than the sum of its proper divisors (165253482572).

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

123940111908 is a wasteful number, since it uses less digits than its factorization.

123940111908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10328342666 (or 10328342664 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The spelling of 123940111908 in words is "one hundred twenty-three billion, nine hundred forty million, one hundred eleven thousand, nine hundred eight".

Divisors: 1 2 3 4 6 12 10328342659 20656685318 30985027977 41313370636 61970055954 123940111908