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64472801012 = 22191701120383
BaseRepresentation
bin111100000010111000…
…001101111011110100
320011102012221122020222
4330002320031323310
52024020014113022
645341323513512
74441460523614
oct740270157364
9204365848228
1064472801012
1125385240724
12105b3988898
1361062cc8c9
14319891ca44
151a2526c242
hexf02e0def4

64472801012 has 24 divisors (see below), whose sum is σ = 113580859392. Its totient is φ = 32021612000.

The previous prime is 64472800933. The next prime is 64472801017. The reversal of 64472801012 is 21010827446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64472801017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475373 + ... + 595755.

It is an arithmetic number, because the mean of its divisors is an integer number (4732535808).

Almost surely, 264472801012 is an apocalyptic number.

It is an amenable number.

64472801012 is a deficient number, since it is larger than the sum of its proper divisors (49108058380).

64472801012 is a wasteful number, since it uses less digits than its factorization.

64472801012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121279 (or 121277 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The spelling of 64472801012 in words is "sixty-four billion, four hundred seventy-two million, eight hundred one thousand, twelve".

Divisors: 1 2 4 191 382 701 764 1402 2804 120383 133891 240766 267782 481532 535564 22993153 45986306 84388483 91972612 168776966 337553932 16118200253 32236400506 64472801012