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641012054 = 210110330809
BaseRepresentation
bin100110001101010…
…001000101010110
31122200011210020012
4212031101011112
52303044341204
6143335040222
721612340544
oct4615210526
91580153205
10641012054
112a991a931
1215a810072
13a2a57c97
14611c0d94
153b41e76e
hex26351156

641012054 has 16 divisors (see below), whose sum is σ = 980497440. Its totient is φ = 314241600.

The previous prime is 641012039. The next prime is 641012111. The reversal of 641012054 is 450210146.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5402 + ... + 36210.

It is an arithmetic number, because the mean of its divisors is an integer number (61281090).

Almost surely, 2641012054 is an apocalyptic number.

641012054 is a deficient number, since it is larger than the sum of its proper divisors (339485386).

641012054 is a wasteful number, since it uses less digits than its factorization.

641012054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31015.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 641012054 is about 25318.2158534127. The cubic root of 641012054 is about 862.2278876666.

The spelling of 641012054 in words is "six hundred forty-one million, twelve thousand, fifty-four".

Divisors: 1 2 101 103 202 206 10403 20806 30809 61618 3111709 3173327 6223418 6346654 320506027 641012054