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79514509445 = 57171093122267
BaseRepresentation
bin100101000001101101…
…1110010000010000101
321121020111120121011022
41022003123302002011
52300321203300240
6100310051520525
75513305115150
oct1120333620205
9247214517138
1079514509445
11307a395a918
12134b12b9145
13766268ccb7
143bc44bcc97
152105a6e9b5
hex12836f2085

79514509445 has 32 divisors (see below), whose sum is σ = 115569669888. Its totient is φ = 51269557248.

The previous prime is 79514509427. The next prime is 79514509447. The reversal of 79514509445 is 54490541597.

It is not a de Polignac number, because 79514509445 - 28 = 79514509189 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79514509447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 589202 + ... + 711468.

It is an arithmetic number, because the mean of its divisors is an integer number (3611552184).

Almost surely, 279514509445 is an apocalyptic number.

It is an amenable number.

79514509445 is a deficient number, since it is larger than the sum of its proper divisors (36055160443).

79514509445 is a wasteful number, since it uses less digits than its factorization.

79514509445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123389.

The product of its (nonzero) digits is 4536000, while the sum is 53.

The spelling of 79514509445 in words is "seventy-nine billion, five hundred fourteen million, five hundred nine thousand, four hundred forty-five".

Divisors: 1 5 7 17 35 85 119 595 1093 5465 7651 18581 38255 92905 122267 130067 611335 650335 855869 2078539 4279345 10392695 14549773 72748865 133637831 668189155 935464817 2271843127 4677324085 11359215635 15902901889 79514509445