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12080365895 = 513214296291
BaseRepresentation
bin10110100000000101…
…11100000101000111
31011011220100011122002
423100002330011013
5144220033202040
65314420055515
7605235262433
oct132002740507
934156304562
1012080365895
11513a062774
12241183459b
1311a69c2600
1482857b9c3
154aa847a15
hex2d00bc147

12080365895 has 12 divisors (see below), whose sum is σ = 15697328616. Its totient is φ = 8920884960.

The previous prime is 12080365859. The next prime is 12080365897. The reversal of 12080365895 is 59856308021.

It is not a de Polignac number, because 12080365895 - 28 = 12080365639 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12080365897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7147301 + ... + 7148990.

It is an arithmetic number, because the mean of its divisors is an integer number (1308110718).

Almost surely, 212080365895 is an apocalyptic number.

12080365895 is a deficient number, since it is larger than the sum of its proper divisors (3616962721).

12080365895 is a wasteful number, since it uses less digits than its factorization.

12080365895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14296322 (or 14296309 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 12080365895 in words is "twelve billion, eighty million, three hundred sixty-five thousand, eight hundred ninety-five".

Divisors: 1 5 13 65 169 845 14296291 71481455 185851783 929258915 2416073179 12080365895