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12140553389 = 79153677891
BaseRepresentation
bin10110100111010001…
…00010010010101101
31011100002121000100112
423103220202102231
5144330440202024
65324410105405
7606566000246
oct132350422255
934302530315
1012140553389
1151700314a8
122429a1b265
1311b6306a03
14832567ccd
154b0c8600e
hex2d3a224ad

12140553389 has 4 divisors (see below), whose sum is σ = 12294231360. Its totient is φ = 11986875420.

The previous prime is 12140553371. The next prime is 12140553401. The reversal of 12140553389 is 98335504121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12140553389 - 212 = 12140549293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140553319) 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, 76838867 + ... + 76839024.

It is an arithmetic number, because the mean of its divisors is an integer number (3073557840).

Almost surely, 212140553389 is an apocalyptic number.

It is an amenable number.

12140553389 is a deficient number, since it is larger than the sum of its proper divisors (153677971).

12140553389 is an equidigital number, since it uses as much as digits as its factorization.

12140553389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153677970.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 12140553389 in words is "twelve billion, one hundred forty million, five hundred fifty-three thousand, three hundred eighty-nine".

Divisors: 1 79 153677891 12140553389