Base | Representation |
---|---|
bin | 100011111010… |
… | …1011000110101 |
3 | 1022102201010210 |
4 | 1013311120311 |
5 | 14310042101 |
6 | 1511340033 |
7 | 316026405 |
oct | 107653065 |
9 | 38381123 |
10 | 18830901 |
11 | a6a1a31 |
12 | 6381619 |
13 | 3b9425b |
14 | 2702805 |
15 | 19be7d6 |
hex | 11f5635 |
18830901 has 16 divisors (see below), whose sum is σ = 25586624. Its totient is φ = 12317184.
The previous prime is 18830897. The next prime is 18830939. The reversal of 18830901 is 10903881.
It is not a de Polignac number, because 18830901 - 22 = 18830897 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18830941) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47235 + ... + 47631.
It is an arithmetic number, because the mean of its divisors is an integer number (1599164).
Almost surely, 218830901 is an apocalyptic number.
It is an amenable number.
18830901 is a deficient number, since it is larger than the sum of its proper divisors (6755723).
18830901 is a wasteful number, since it uses less digits than its factorization.
18830901 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 660.
The product of its (nonzero) digits is 1728, while the sum is 30.
The square root of 18830901 is about 4339.4586067850. The cubic root of 18830901 is about 266.0461835879.
The spelling of 18830901 in words is "eighteen million, eight hundred thirty thousand, nine hundred one".
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