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11982000139 = 16481727019
BaseRepresentation
bin10110010100010111…
…01101000000001011
31010221001020200011221
423022023231000023
5144014343001024
65300543502511
7602632215004
oct131213550013
933831220157
1011982000139
11509958805a
1223a48b7a37
13118c501915
148194941ab
154a1db73e4
hex2ca2ed00b

11982000139 has 4 divisors (see below), whose sum is σ = 11982743640. Its totient is φ = 11981256640.

The previous prime is 11982000137. The next prime is 11982000143. The reversal of 11982000139 is 93100028911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93100028911 = 391332379067.

It is a cyclic number.

It is not a de Polignac number, because 11982000139 - 21 = 11982000137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11982000137) 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, 347029 + ... + 379990.

It is an arithmetic number, because the mean of its divisors is an integer number (2995685910).

Almost surely, 211982000139 is an apocalyptic number.

11982000139 is a deficient number, since it is larger than the sum of its proper divisors (743501).

11982000139 is an equidigital number, since it uses as much as digits as its factorization.

11982000139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743500.

The product of its (nonzero) digits is 3888, while the sum is 34.

The spelling of 11982000139 in words is "eleven billion, nine hundred eighty-two million, one hundred thirty-nine", and thus it is an aban number.

Divisors: 1 16481 727019 11982000139