Base | Representation |
---|---|
bin | 100100001001… |
… | …0111110000001 |
3 | 1022122212100100 |
4 | 1020102332001 |
5 | 14322431230 |
6 | 1514113013 |
7 | 320042556 |
oct | 110227601 |
9 | 38585310 |
10 | 18952065 |
11 | a774a70 |
12 | 641b769 |
13 | 3c07452 |
14 | 2734a2d |
15 | 19e5660 |
hex | 1212f81 |
18952065 has 24 divisors (see below), whose sum is σ = 35837568. Its totient is φ = 9188640.
The previous prime is 18952049. The next prime is 18952079. The reversal of 18952065 is 56025981.
It is a happy number.
It is not a de Polignac number, because 18952065 - 24 = 18952049 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18649 + ... + 19638.
It is an arithmetic number, because the mean of its divisors is an integer number (1493232).
Almost surely, 218952065 is an apocalyptic number.
18952065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
18952065 is a deficient number, since it is larger than the sum of its proper divisors (16885503).
18952065 is a wasteful number, since it uses less digits than its factorization.
18952065 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38309 (or 38306 counting only the distinct ones).
The product of its (nonzero) digits is 21600, while the sum is 36.
The square root of 18952065 is about 4353.3969495097. The cubic root of 18952065 is about 266.6155726762.
The spelling of 18952065 in words is "eighteen million, nine hundred fifty-two thousand, sixty-five".
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