Base | Representation |
---|---|
bin | 100001100101000110… |
… | …1101101100100111100 |
3 | 20220010121120122202120 |
4 | 1003022031231210330 |
5 | 2140141142201144 |
6 | 53043335522540 |
7 | 5132001321000 |
oct | 1031215554474 |
9 | 226117518676 |
10 | 72112068924 |
11 | 28645423785 |
12 | 11b86229450 |
13 | 6a52b9c98c |
14 | 36c1324700 |
15 | 1d20c5de19 |
hex | 10ca36d93c |
72112068924 has 96 divisors (see below), whose sum is σ = 196340928000. Its totient is φ = 20591101440.
The previous prime is 72112068907. The next prime is 72112068947. The reversal of 72112068924 is 42986021127.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8561187 + ... + 8569605.
It is an arithmetic number, because the mean of its divisors is an integer number (2045218000).
Almost surely, 272112068924 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 72112068924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98170464000).
72112068924 is an abundant number, since it is smaller than the sum of its proper divisors (124228859076).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72112068924 is a wasteful number, since it uses less digits than its factorization.
72112068924 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10528 (or 10512 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 42.
The spelling of 72112068924 in words is "seventy-two billion, one hundred twelve million, sixty-eight thousand, nine hundred twenty-four".
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