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79413911894 = 21723101552317
BaseRepresentation
bin100100111110101110…
…0000010000101010110
321120222111021201021002
41021331130002011112
52300114430140034
6100252055423302
75510644053632
oct1117534020526
9246874251232
1079413911894
11307520a0449
1213483684b32
13764789a515
143bb4db3dc2
1520ebcece7e
hex127d702156

79413911894 has 16 divisors (see below), whose sum is σ = 131611804128. Its totient is φ = 35746415232.

The previous prime is 79413911879. The next prime is 79413911897. The reversal of 79413911894 is 49811931497.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79413911897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50775377 + ... + 50776940.

It is an arithmetic number, because the mean of its divisors is an integer number (8225737758).

Almost surely, 279413911894 is an apocalyptic number.

79413911894 is a deficient number, since it is larger than the sum of its proper divisors (52197892234).

79413911894 is a wasteful number, since it uses less digits than its factorization.

79413911894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101552359.

The product of its digits is 1959552, while the sum is 56.

The spelling of 79413911894 in words is "seventy-nine billion, four hundred thirteen million, nine hundred eleven thousand, eight hundred ninety-four".

Divisors: 1 2 17 23 34 46 391 782 101552317 203104634 1726389389 2335703291 3452778778 4671406582 39706955947 79413911894