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12272057746 = 213472002221
BaseRepresentation
bin10110110110111100…
…01011110110010010
31011200021001010102021
423123132023312102
5200113121321441
65345424442054
7613053525004
oct133336136622
934607033367
1012272057746
115228290693
122465a7932a
13120762b140
14845bda374
154bc5b03d1
hex2db78bd92

12272057746 has 8 divisors (see below), whose sum is σ = 19824093324. Its totient is φ = 5664026640.

The previous prime is 12272057741. The next prime is 12272057773. The reversal of 12272057746 is 64775027221.

It can be written as a sum of positive squares in 2 ways, for example, as 12113423721 + 158634025 = 110061^2 + 12595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12272057741) 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, 236001085 + ... + 236001136.

Almost surely, 212272057746 is an apocalyptic number.

12272057746 is a deficient number, since it is larger than the sum of its proper divisors (7552035578).

12272057746 is a wasteful number, since it uses less digits than its factorization.

12272057746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472002236.

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 12272057746 in words is "twelve billion, two hundred seventy-two million, fifty-seven thousand, seven hundred forty-six".

Divisors: 1 2 13 26 472002221 944004442 6136028873 12272057746