Base | Representation |
---|---|
bin | 10001011001000101… |
… | …100100010101110100 |
3 | 1210012110100221102110 |
4 | 101121011210111310 |
5 | 301221133012410 |
6 | 12325015211020 |
7 | 1230525432162 |
oct | 213105442564 |
9 | 53173327373 |
10 | 18674500980 |
11 | 7a132a5a93 |
12 | 3752076a70 |
13 | 19b7bb25a5 |
14 | c92248232 |
15 | 7446e0720 |
hex | 459164574 |
18674500980 has 48 divisors (see below), whose sum is σ = 52302741120. Its totient is φ = 4978520448.
The previous prime is 18674500939. The next prime is 18674500993. The reversal of 18674500980 is 8900547681.
It is a congruent number.
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, 192481 + ... + 272759.
It is an arithmetic number, because the mean of its divisors is an integer number (1089640440).
Almost surely, 218674500980 is an apocalyptic number.
18674500980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
18674500980 is an abundant number, since it is smaller than the sum of its proper divisors (33628240140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18674500980 is a wasteful number, since it uses less digits than its factorization.
18674500980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84168 (or 84166 counting only the distinct ones).
The product of its (nonzero) digits is 483840, while the sum is 48.
The spelling of 18674500980 in words is "eighteen billion, six hundred seventy-four million, five hundred thousand, nine hundred eighty".
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