Base | Representation |
---|---|
bin | 100010100110… |
… | …1011011101010 |
3 | 1021010202110021 |
4 | 1011031123222 |
5 | 14121033304 |
6 | 1444511054 |
7 | 310132624 |
oct | 105153352 |
9 | 37122407 |
10 | 18142954 |
11 | a272085 |
12 | 60ab48a |
13 | 39b309b |
14 | 25a3c14 |
15 | 18d5a54 |
hex | 114d6ea |
18142954 has 8 divisors (see below), whose sum is σ = 27263808. Its totient is φ = 9055020.
The previous prime is 18142937. The next prime is 18142963. The reversal of 18142954 is 45924181.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×181429542 = 658333559692232, which contains 22 as substring.
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 3 ways as a sum of consecutive naturals, for example, 6802 + ... + 9085.
It is an arithmetic number, because the mean of its divisors is an integer number (3407976).
Almost surely, 218142954 is an apocalyptic number.
18142954 is a deficient number, since it is larger than the sum of its proper divisors (9120854).
18142954 is a wasteful number, since it uses less digits than its factorization.
18142954 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16460.
The product of its digits is 11520, while the sum is 34.
The square root of 18142954 is about 4259.4546599301. The cubic root of 18142954 is about 262.7660987184.
The spelling of 18142954 in words is "eighteen million, one hundred forty-two thousand, nine hundred fifty-four".
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