Base | Representation |
---|---|
bin | 100001011010100111… |
… | …0101000110110000100 |
3 | 20212020002002012110220 |
4 | 1002311032220312010 |
5 | 2133431024141043 |
6 | 52544401344340 |
7 | 5120164565160 |
oct | 1026516506604 |
9 | 225202065426 |
10 | 71759990148 |
11 | 28484709790 |
12 | 11aa83380b0 |
13 | 69c7c69542 |
14 | 368a675ca0 |
15 | 1ceedb4483 |
hex | 10b53a8d84 |
71759990148 has 48 divisors (see below), whose sum is σ = 208756337664. Its totient is φ = 18638958240.
The previous prime is 71759990089. The next prime is 71759990171. The reversal of 71759990148 is 84109995717.
It is a junction number, because it is equal to n+sod(n) for n = 71759990091 and 71759990100.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38830240 + ... + 38832087.
It is an arithmetic number, because the mean of its divisors is an integer number (4349090368).
Almost surely, 271759990148 is an apocalyptic number.
It is an amenable number.
71759990148 is an abundant number, since it is smaller than the sum of its proper divisors (136996347516).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
71759990148 is a wasteful number, since it uses less digits than its factorization.
71759990148 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 77662352 (or 77662350 counting only the distinct ones).
The product of its (nonzero) digits is 5715360, while the sum is 60.
The spelling of 71759990148 in words is "seventy-one billion, seven hundred fifty-nine million, nine hundred ninety thousand, one hundred forty-eight".
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