Base | Representation |
---|---|
bin | 100011100111… |
… | …1101010010100 |
3 | 1022010212011111 |
4 | 1013033222110 |
5 | 14240120442 |
6 | 1504144404 |
7 | 314514031 |
oct | 107175224 |
9 | 38125144 |
10 | 18676372 |
11 | a5a6920 |
12 | 6308104 |
13 | 3b3bb10 |
14 | 26a2388 |
15 | 198db17 |
hex | 11cfa94 |
18676372 has 48 divisors (see below), whose sum is σ = 38892672. Its totient is φ = 7735680.
The previous prime is 18676369. The next prime is 18676381. The reversal of 18676372 is 27367681.
Its product of digits (84672) is a multiple of the sum of its prime factors (448).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58758 + ... + 59074.
It is an arithmetic number, because the mean of its divisors is an integer number (810264).
Almost surely, 218676372 is an apocalyptic number.
It is an amenable number.
18676372 is an abundant number, since it is smaller than the sum of its proper divisors (20216300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18676372 is a wasteful number, since it uses less digits than its factorization.
18676372 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 448 (or 446 counting only the distinct ones).
The product of its digits is 84672, while the sum is 40.
The square root of 18676372 is about 4321.6168270683. The cubic root of 18676372 is about 265.3164464617.
The spelling of 18676372 in words is "eighteen million, six hundred seventy-six thousand, three hundred seventy-two".
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