Base | Representation |
---|---|
bin | 100100110110101011… |
… | …0111100110000011110 |
3 | 21120021200200002010222 |
4 | 1021231112330300132 |
5 | 2244041400101102 |
6 | 100205221401342 |
7 | 5501160060215 |
oct | 1115526746036 |
9 | 246250602128 |
10 | 79144143902 |
11 | 3062389579a |
12 | 13409269252 |
13 | 7603a261a5 |
14 | 3b8b23007c |
15 | 20d32b1aa2 |
hex | 126d5bcc1e |
79144143902 has 64 divisors (see below), whose sum is σ = 130577624640. Its totient is φ = 35852544000.
The previous prime is 79144143901. The next prime is 79144143907. The reversal of 79144143902 is 20934144197.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (79144143901) 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, 13879652 + ... + 13885352.
It is an arithmetic number, because the mean of its divisors is an integer number (2040275385).
Almost surely, 279144143902 is an apocalyptic number.
79144143902 is a deficient number, since it is larger than the sum of its proper divisors (51433480738).
79144143902 is a wasteful number, since it uses less digits than its factorization.
79144143902 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5949.
The product of its (nonzero) digits is 217728, while the sum is 44.
The spelling of 79144143902 in words is "seventy-nine billion, one hundred forty-four million, one hundred forty-three thousand, nine hundred two".
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