Base | Representation |
---|---|
bin | 100001011101101011… |
… | …0010011101111100100 |
3 | 20212111020021120202020 |
4 | 1002323112103233210 |
5 | 2134133320223124 |
6 | 53002510143140 |
7 | 5122552365264 |
oct | 1027326235744 |
9 | 225436246666 |
10 | 71862664164 |
11 | 28527667245 |
12 | 11b167b1ab0 |
13 | 6a133081b5 |
14 | 369a1617a4 |
15 | 1d08de6379 |
hex | 10bb593be4 |
71862664164 has 48 divisors (see below), whose sum is σ = 171682156800. Its totient is φ = 23383090080.
The previous prime is 71862664141. The next prime is 71862664169. The reversal of 71862664164 is 46146626817.
It is not an unprimeable number, because it can be changed into a prime (71862664169) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835699 + ... + 917669.
It is an arithmetic number, because the mean of its divisors is an integer number (3576711600).
Almost surely, 271862664164 is an apocalyptic number.
It is an amenable number.
71862664164 is an abundant number, since it is smaller than the sum of its proper divisors (99819492636).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
71862664164 is a wasteful number, since it uses less digits than its factorization.
71862664164 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83720 (or 83718 counting only the distinct ones).
The product of its digits is 2322432, while the sum is 51.
The spelling of 71862664164 in words is "seventy-one billion, eight hundred sixty-two million, six hundred sixty-four thousand, one hundred sixty-four".
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