Base | Representation |
---|---|
bin | 100100001011… |
… | …1100000110010 |
3 | 1022200210212120 |
4 | 1020113200302 |
5 | 14324030144 |
6 | 1514335110 |
7 | 320151042 |
oct | 110274062 |
9 | 38623776 |
10 | 18970674 |
11 | a787a48 |
12 | 642a496 |
13 | 3c12a68 |
14 | 273b722 |
15 | 19eae19 |
hex | 1217832 |
18970674 has 16 divisors (see below), whose sum is σ = 40173408. Its totient is φ = 5951552.
The previous prime is 18970631. The next prime is 18970709. The reversal of 18970674 is 47607981.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92892 + ... + 93095.
It is an arithmetic number, because the mean of its divisors is an integer number (2510838).
Almost surely, 218970674 is an apocalyptic number.
18970674 is an abundant number, since it is smaller than the sum of its proper divisors (21202734).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18970674 is a wasteful number, since it uses less digits than its factorization.
18970674 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 186009.
The product of its (nonzero) digits is 84672, while the sum is 42.
The square root of 18970674 is about 4355.5337216006. The cubic root of 18970674 is about 266.7028072545.
The spelling of 18970674 in words is "eighteen million, nine hundred seventy thousand, six hundred seventy-four".
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