Base | Representation |
---|---|
bin | 100011110111… |
… | …0110101100110 |
3 | 1022101100100001 |
4 | 1013232311212 |
5 | 14303212240 |
6 | 1511011514 |
7 | 315555235 |
oct | 107566546 |
9 | 38340301 |
10 | 18804070 |
11 | a68385a |
12 | 6369b9a |
13 | 3b84c8c |
14 | 26d6b1c |
15 | 19b689a |
hex | 11eed66 |
18804070 has 16 divisors (see below), whose sum is σ = 34312320. Its totient is φ = 7418304.
The previous prime is 18804031. The next prime is 18804077. The reversal of 18804070 is 7040881.
It is a super-3 number, since 3×188040703 (a number of 23 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18804077) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12150 + ... + 13609.
It is an arithmetic number, because the mean of its divisors is an integer number (2144520).
Almost surely, 218804070 is an apocalyptic number.
18804070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18804070 is a deficient number, since it is larger than the sum of its proper divisors (15508250).
18804070 is a wasteful number, since it uses less digits than its factorization.
18804070 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25839.
The product of its (nonzero) digits is 1792, while the sum is 28.
The square root of 18804070 is about 4336.3659900889. The cubic root of 18804070 is about 265.9197658779.
The spelling of 18804070 in words is "eighteen million, eight hundred four thousand, seventy".
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