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12190046672 = 24312792797
BaseRepresentation
bin10110101101001010…
…10101100111010000
31011110112201112101002
423112211111213100
5144431122443142
65333335001132
7611036454446
oct132645254720
934415645332
1012190046672
115195a66541
1224425091a8
1311c364558b
14838d6cb96
154b52b0a32
hex2d69559d0

12190046672 has 30 divisors (see below), whose sum is σ = 24404700834. Its totient is φ = 5898402240.

The previous prime is 12190046633. The next prime is 12190046681. The reversal of 12190046672 is 27664009121.

12190046672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11611355536 + 578691136 = 107756^2 + 24056^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 381023 + ... + 411774.

Almost surely, 212190046672 is an apocalyptic number.

It is an amenable number.

12190046672 is an abundant number, since it is smaller than the sum of its proper divisors (12214654162).

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

12190046672 is an equidigital number, since it uses as much as digits as its factorization.

12190046672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792867 (or 792830 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 12190046672 in words is "twelve billion, one hundred ninety million, forty-six thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 31 62 124 248 496 961 1922 3844 7688 15376 792797 1585594 3171188 6342376 12684752 24576707 49153414 98306828 196613656 393227312 761877917 1523755834 3047511668 6095023336 12190046672