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12257067823 = 7111312244823
BaseRepresentation
bin10110110101001010…
…00000001100101111
31011122012211120002221
423122211000030233
5200100302132243
65344131300211
7612512233420
oct133245001457
934565746087
1012257067823
11521a882520
122460a4a667
1312044b0270
14843c17647
154bb0edbed
hex2da94032f

12257067823 has 16 divisors (see below), whose sum is σ = 16457043456. Its totient is φ = 8816271840.

The previous prime is 12257067821. The next prime is 12257067833. The reversal of 12257067823 is 32876075221.

It is a cyclic number.

It is not a de Polignac number, because 12257067823 - 21 = 12257067821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12257067823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12257067821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6121411 + ... + 6123412.

It is an arithmetic number, because the mean of its divisors is an integer number (1028565216).

Almost surely, 212257067823 is an apocalyptic number.

12257067823 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12257067823 is a deficient number, since it is larger than the sum of its proper divisors (4199975633).

12257067823 is a wasteful number, since it uses less digits than its factorization.

12257067823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12244854.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 12257067823 in words is "twelve billion, two hundred fifty-seven million, sixty-seven thousand, eight hundred twenty-three".

Divisors: 1 7 11 13 77 91 143 1001 12244823 85713761 134693053 159182699 942851371 1114278893 1751009689 12257067823