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12386861843 = 192922480693
BaseRepresentation
bin10111000100101000…
…01000001100010011
31011222021001210000212
423202110020030103
5200332014034333
65405045234335
7615646405556
oct134224101423
934867053025
1012386861843
115287073704
1224984029ab
131225356065
1485716269d
154c76db448
hex2e2508313

12386861843 has 8 divisors (see below), whose sum is σ = 13488416400. Its totient is φ = 11330268768.

The previous prime is 12386861831. The next prime is 12386861869. The reversal of 12386861843 is 34816868321.

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

It is a cyclic number.

It is not a de Polignac number, because 12386861843 - 226 = 12319752979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12386861791 and 12386861800.

It is not an unprimeable number, because it can be changed into a prime (12386861873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11239796 + ... + 11240897.

It is an arithmetic number, because the mean of its divisors is an integer number (1686052050).

Almost surely, 212386861843 is an apocalyptic number.

12386861843 is a deficient number, since it is larger than the sum of its proper divisors (1101554557).

12386861843 is a wasteful number, since it uses less digits than its factorization.

12386861843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22480741.

The product of its digits is 1327104, while the sum is 50.

The spelling of 12386861843 in words is "twelve billion, three hundred eighty-six million, eight hundred sixty-one thousand, eight hundred forty-three".

Divisors: 1 19 29 551 22480693 427133167 651940097 12386861843