Search a number
-
+
12641444054 = 230672060881
BaseRepresentation
bin10111100010111110…
…10010000011010110
31012122000002220011122
423301133102003112
5201342202202204
65450222003542
7625160334011
oct136137220326
935560086148
1012641444054
1153a7847028
1225497165b2
131266011315
1487ccb2378
154dec280be
hex2f17d20d6

12641444054 has 8 divisors (see below), whose sum is σ = 18968357928. Its totient is φ = 6318658080.

The previous prime is 12641444003. The next prime is 12641444107. The reversal of 12641444054 is 45044414621.

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

It is a super-2 number, since 2×126414440542 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024307 + ... + 1036574.

It is an arithmetic number, because the mean of its divisors is an integer number (2371044741).

Almost surely, 212641444054 is an apocalyptic number.

12641444054 is a deficient number, since it is larger than the sum of its proper divisors (6326913874).

12641444054 is a wasteful number, since it uses less digits than its factorization.

12641444054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063950.

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 12641444054 its reverse (45044414621), we get a palindrome (57685858675).

The spelling of 12641444054 in words is "twelve billion, six hundred forty-one million, four hundred forty-four thousand, fifty-four".

Divisors: 1 2 3067 6134 2060881 4121762 6320722027 12641444054