Base | Representation |
---|---|
bin | 100010100001… |
… | …0001101110000 |
3 | 1021001102102120 |
4 | 1011002031300 |
5 | 14113101013 |
6 | 1443514240 |
7 | 306551646 |
oct | 105021560 |
9 | 37042376 |
10 | 18097008 |
11 | a240606 |
12 | 6088980 |
13 | 39981b7 |
14 | 2591196 |
15 | 18c7123 |
hex | 1142370 |
18097008 has 20 divisors (see below), whose sum is σ = 46750728. Its totient is φ = 6032320.
The previous prime is 18097003. The next prime is 18097019. The reversal of 18097008 is 80079081.
It is a self number, because there is not a number n which added to its sum of digits gives 18097008.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18097003) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188463 + ... + 188558.
Almost surely, 218097008 is an apocalyptic number.
It is an amenable number.
18097008 is an abundant number, since it is smaller than the sum of its proper divisors (28653720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18097008 is a wasteful number, since it uses less digits than its factorization.
18097008 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 377032 (or 377026 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 33.
The square root of 18097008 is about 4254.0578275336. The cubic root of 18097008 is about 262.5440978069.
The spelling of 18097008 in words is "eighteen million, ninety-seven thousand, eight".
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