Base | Representation |
---|---|
bin | 100100001010… |
… | …1011011001010 |
3 | 1022200101010211 |
4 | 1020111123022 |
5 | 14323241442 |
6 | 1514231334 |
7 | 320114104 |
oct | 110253312 |
9 | 38611124 |
10 | 18962122 |
11 | a781583 |
12 | 642554a |
13 | 3c0bbba |
14 | 2738574 |
15 | 19e8617 |
hex | 12156ca |
18962122 has 4 divisors (see below), whose sum is σ = 28443186. Its totient is φ = 9481060.
The previous prime is 18962071. The next prime is 18962147. The reversal of 18962122 is 22126981.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22126981 = 859 ⋅25759.
It can be written as a sum of positive squares in only one way, i.e., 14205361 + 4756761 = 3769^2 + 2181^2 .
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
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 as a sum of consecutive naturals, namely, 4740529 + ... + 4740532.
Almost surely, 218962122 is an apocalyptic number.
18962122 is a deficient number, since it is larger than the sum of its proper divisors (9481064).
18962122 is an equidigital number, since it uses as much as digits as its factorization.
18962122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9481063.
The product of its digits is 3456, while the sum is 31.
The square root of 18962122 is about 4354.5518713181. The cubic root of 18962122 is about 266.6627245945.
The spelling of 18962122 in words is "eighteen million, nine hundred sixty-two thousand, one hundred twenty-two".
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