Base | Representation |
---|---|
bin | 100010100000… |
… | …1010000011111 |
3 | 1021001020001100 |
4 | 1011001100133 |
5 | 14112434322 |
6 | 1443444143 |
7 | 306534345 |
oct | 105012037 |
9 | 37036040 |
10 | 18093087 |
11 | a238671 |
12 | 6086653 |
13 | 399648c |
14 | 258d995 |
15 | 18c5dac |
hex | 114141f |
18093087 has 24 divisors (see below), whose sum is σ = 27007344. Its totient is φ = 11666304.
The previous prime is 18093079. The next prime is 18093107. The reversal of 18093087 is 78039081.
It is not a de Polignac number, because 18093087 - 23 = 18093079 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18093787) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39363 + ... + 39819.
It is an arithmetic number, because the mean of its divisors is an integer number (1125306).
Almost surely, 218093087 is an apocalyptic number.
18093087 is a deficient number, since it is larger than the sum of its proper divisors (8914257).
18093087 is a wasteful number, since it uses less digits than its factorization.
18093087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 599 (or 596 counting only the distinct ones).
The product of its (nonzero) digits is 12096, while the sum is 36.
The square root of 18093087 is about 4253.5969484661. The cubic root of 18093087 is about 262.5251350082.
The spelling of 18093087 in words is "eighteen million, ninety-three thousand, eighty-seven".
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