Search a number
-
+
12901672889 = 79719000991
BaseRepresentation
bin11000000001111111…
…11110011110111001
31020022010202220000122
430000333332132321
5202410312013024
65532115343025
7634500260450
oct140077763671
936263686018
1012901672889
115520726886
1226008b1a75
1312a7bc5791
148a5691b97
155079ccd5e
hex300ffe7b9

12901672889 has 8 divisors (see below), whose sum is σ = 14896777728. Its totient is φ = 10944570240.

The previous prime is 12901672841. The next prime is 12901672919. The reversal of 12901672889 is 98827610921.

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 12901672889 - 216 = 12901607353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12901672889.

It is not an unprimeable number, because it can be changed into a prime (12901672489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9499817 + ... + 9501174.

It is an arithmetic number, because the mean of its divisors is an integer number (1862097216).

Almost surely, 212901672889 is an apocalyptic number.

It is an amenable number.

12901672889 is a deficient number, since it is larger than the sum of its proper divisors (1995104839).

12901672889 is an equidigital number, since it uses as much as digits as its factorization.

12901672889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19001095.

The product of its (nonzero) digits is 870912, while the sum is 53.

The spelling of 12901672889 in words is "twelve billion, nine hundred one million, six hundred seventy-two thousand, eight hundred eighty-nine".

Divisors: 1 7 97 679 19000991 133006937 1843096127 12901672889