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12127772150 = 2521318658111
BaseRepresentation
bin10110100101101111…
…10001110111110110
31011022012112122210022
423102313301313312
5144314202202100
65323232125142
7606352235204
oct132267616766
934265478708
1012127772150
1151638a179a
1224256967b2
1311b3780250
1483099c074
154aeaade85
hex2d2df1df6

12127772150 has 24 divisors (see below), whose sum is σ = 24292861824. Its totient is φ = 4477946400.

The previous prime is 12127772147. The next prime is 12127772191. The reversal of 12127772150 is 5127772121.

It is a self number, because there is not a number n which added to its sum of digits gives 12127772150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9328406 + ... + 9329705.

It is an arithmetic number, because the mean of its divisors is an integer number (1012202576).

Almost surely, 212127772150 is an apocalyptic number.

12127772150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12127772150 is an abundant number, since it is smaller than the sum of its proper divisors (12165089674).

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

12127772150 is a wasteful number, since it uses less digits than its factorization.

12127772150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18658136 (or 18658131 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 35.

The spelling of 12127772150 in words is "twelve billion, one hundred twenty-seven million, seven hundred seventy-two thousand, one hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 18658111 37316222 93290555 186581110 242555443 466452775 485110886 932905550 1212777215 2425554430 6063886075 12127772150