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12227823760 = 245152847797
BaseRepresentation
bin10110110001101010…
…11100100010010000
31011120011210210210111
423120311130202100
5200020310330020
65341204411104
7612005533645
oct133065344220
934504723714
1012227823760
115205318a79
1224530a6a94
1311cb411399
1483dda3dcc
154b8773d5a
hex2d8d5c890

12227823760 has 20 divisors (see below), whose sum is σ = 28429690428. Its totient is φ = 4891129472.

The previous prime is 12227823743. The next prime is 12227823763. The reversal of 12227823760 is 6732872221.

It can be written as a sum of positive squares in 2 ways, for example, as 1889814784 + 10338008976 = 43472^2 + 101676^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (12227823763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76423819 + ... + 76423978.

Almost surely, 212227823760 is an apocalyptic number.

12227823760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12227823760 is an abundant number, since it is smaller than the sum of its proper divisors (16201866668).

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

12227823760 is a wasteful number, since it uses less digits than its factorization.

12227823760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152847810 (or 152847804 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 12227823760 in words is "twelve billion, two hundred twenty-seven million, eight hundred twenty-three thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 152847797 305695594 611391188 764238985 1222782376 1528477970 2445564752 3056955940 6113911880 12227823760