Base | Representation |
---|---|
bin | 100010011011… |
… | …1101000101000 |
3 | 1020222012222112 |
4 | 1010313220220 |
5 | 14110204142 |
6 | 1442541452 |
7 | 306311420 |
oct | 104675050 |
9 | 36865875 |
10 | 18053672 |
11 | a210a9a |
12 | 6067888 |
13 | 3981560 |
14 | 257d480 |
15 | 18b9382 |
hex | 1137a28 |
18053672 has 32 divisors (see below), whose sum is σ = 41664000. Its totient is φ = 7141824.
The previous prime is 18053663. The next prime is 18053681. The reversal of 18053672 is 27635081.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (18053663) and next prime (18053681).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11672 + ... + 13127.
It is an arithmetic number, because the mean of its divisors is an integer number (1302000).
Almost surely, 218053672 is an apocalyptic number.
It is an amenable number.
18053672 is an abundant number, since it is smaller than the sum of its proper divisors (23610328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18053672 is a wasteful number, since it uses less digits than its factorization.
18053672 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24825 (or 24821 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 32.
The square root of 18053672 is about 4248.9612848319. The cubic root of 18053672 is about 262.3343632305.
The spelling of 18053672 in words is "eighteen million, fifty-three thousand, six hundred seventy-two".
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