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12014509990 = 257171635857
BaseRepresentation
bin10110011000001111…
…01101111110100110
31011000022102100022111
423030013231332212
5144101203304430
65304104351234
7603505435630
oct131407557646
934008370274
1012014509990
1151059721aa
1223b377551a
131196175112
1481d917a50
154a4b89c2a
hex2cc1edfa6

12014509990 has 16 divisors (see below), whose sum is σ = 24715563552. Its totient is φ = 4119260544.

The previous prime is 12014509957. The next prime is 12014509999. The reversal of 12014509990 is 9990541021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12014509999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85817859 + ... + 85817998.

It is an arithmetic number, because the mean of its divisors is an integer number (1544722722).

Almost surely, 212014509990 is an apocalyptic number.

12014509990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12014509990 is an abundant number, since it is smaller than the sum of its proper divisors (12701053562).

12014509990 is a wasteful number, since it uses less digits than its factorization.

12014509990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171635871.

The product of its (nonzero) digits is 29160, while the sum is 40.

The spelling of 12014509990 in words is "twelve billion, fourteen million, five hundred nine thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 171635857 343271714 858179285 1201450999 1716358570 2402901998 6007254995 12014509990