Base | Representation |
---|---|
bin | 100001111101011110… |
… | …1110111111111011010 |
3 | 20222020121122220102220 |
4 | 1003322331313333122 |
5 | 2143330040011413 |
6 | 53300435004510 |
7 | 5161162531131 |
oct | 1037275677732 |
9 | 228217586386 |
10 | 72930000858 |
11 | 28a250a2090 |
12 | 12174139736 |
13 | 6b53490880 |
14 | 375bbda918 |
15 | 1d6c979223 |
hex | 10faf77fda |
72930000858 has 64 divisors (see below), whose sum is σ = 171801302400. Its totient is φ = 20347464960.
The previous prime is 72930000853. The next prime is 72930000953. The reversal of 72930000858 is 85800003927.
It is not an unprimeable number, because it can be changed into a prime (72930000853) 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, 224508 + ... + 443016.
It is an arithmetic number, because the mean of its divisors is an integer number (2684395350).
Almost surely, 272930000858 is an apocalyptic number.
72930000858 is a gapful number since it is divisible by the number (78) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 72930000858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85900651200).
72930000858 is an abundant number, since it is smaller than the sum of its proper divisors (98871301542).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72930000858 is a wasteful number, since it uses less digits than its factorization.
72930000858 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 218927.
The product of its (nonzero) digits is 120960, while the sum is 42.
The spelling of 72930000858 in words is "seventy-two billion, nine hundred thirty million, eight hundred fifty-eight", and thus it is an aban number.
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