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12889923304607 = 96311338378497
BaseRepresentation
bin1011101110010010101101…
…0011001011110010011111
31200122021010220210000121022
42323210223103023302133
53142142030331221412
643225314330554355
72500160213210246
oct273445323136237
950567126700538
1012889923304607
11411a649736268
1215421a12989bb
1372668c61732b
14327c3899995d
1517546a98ea72
hexbb92b4cbc9f

12889923304607 has 4 divisors (see below), whose sum is σ = 12891261692736. Its totient is φ = 12888584916480.

The previous prime is 12889923304537. The next prime is 12889923304619. The reversal of 12889923304607 is 70640332998821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12889923304607 - 218 = 12889923042463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12889923304607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12889923304807) 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, 669179618 + ... + 669198879.

It is an arithmetic number, because the mean of its divisors is an integer number (3222815423184).

Almost surely, 212889923304607 is an apocalyptic number.

12889923304607 is a deficient number, since it is larger than the sum of its proper divisors (1338388129).

12889923304607 is an equidigital number, since it uses as much as digits as its factorization.

12889923304607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338388128.

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 12889923304607 in words is "twelve trillion, eight hundred eighty-nine billion, nine hundred twenty-three million, three hundred four thousand, six hundred seven".

Divisors: 1 9631 1338378497 12889923304607