Base | Representation |
---|---|
bin | 100101101011011001… |
… | …0100110100010111110 |
3 | 21201211222002022102102 |
4 | 1023112302212202332 |
5 | 2311202212010023 |
6 | 101100530225102 |
7 | 5563046105021 |
oct | 1132662464276 |
9 | 251758068372 |
10 | 80913000638 |
11 | 31351308a68 |
12 | 13821725192 |
13 | 7826330a92 |
14 | 3cb811b1b8 |
15 | 2188717628 |
hex | 12d6ca68be |
80913000638 has 8 divisors (see below), whose sum is σ = 122071059288. Its totient is φ = 40222647544.
The previous prime is 80913000631. The next prime is 80913000647. The reversal of 80913000638 is 83600031908.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80913000631) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116925956 + ... + 116926647.
It is an arithmetic number, because the mean of its divisors is an integer number (15258882411).
Almost surely, 280913000638 is an apocalyptic number.
80913000638 is a deficient number, since it is larger than the sum of its proper divisors (41158058650).
80913000638 is a wasteful number, since it uses less digits than its factorization.
80913000638 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 233852778.
The product of its (nonzero) digits is 31104, while the sum is 38.
The spelling of 80913000638 in words is "eighty billion, nine hundred thirteen million, six hundred thirty-eight", and thus it is an aban number.
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