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12641159 = 17970621
BaseRepresentation
bin110000001110…
…001110000111
3212210020102002
4300032032013
511214004114
61130535515
7212306456
oct60161607
925706362
1012641159
117154543
12429759b
132807a9b
141970b9d
15119a7de
hexc0e387

12641159 has 4 divisors (see below), whose sum is σ = 12711960. Its totient is φ = 12570360.

The previous prime is 12641147. The next prime is 12641171. The reversal of 12641159 is 95114621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95114621 = 713587803.

It is an interprime number because it is at equal distance from previous prime (12641147) and next prime (12641171).

It is a cyclic number.

It is not a de Polignac number, because 12641159 - 216 = 12575623 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12641119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35132 + ... + 35489.

It is an arithmetic number, because the mean of its divisors is an integer number (3177990).

Almost surely, 212641159 is an apocalyptic number.

12641159 is a deficient number, since it is larger than the sum of its proper divisors (70801).

12641159 is an equidigital number, since it uses as much as digits as its factorization.

12641159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70800.

The product of its digits is 2160, while the sum is 29.

The square root of 12641159 is about 3555.4407602996. The cubic root of 12641159 is about 232.9497764247.

The spelling of 12641159 in words is "twelve million, six hundred forty-one thousand, one hundred fifty-nine".

Divisors: 1 179 70621 12641159