Base | Representation |
---|---|
bin | 10001011010011100… |
… | …111110011000111111 |
3 | 1210021001111001110111 |
4 | 101122130332120333 |
5 | 301243014223312 |
6 | 12331154250451 |
7 | 1231224253453 |
oct | 213234763077 |
9 | 53231431414 |
10 | 18697414207 |
11 | 7a2522603a |
12 | 3759886a27 |
13 | 19bc875a04 |
14 | c952d0663 |
15 | 7467198a7 |
hex | 45a73e63f |
18697414207 has 8 divisors (see below), whose sum is σ = 19021872800. Its totient is φ = 18373534560.
The previous prime is 18697414201. The next prime is 18697414231. The reversal of 18697414207 is 70241479681.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-18697414207 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 (18697414201) 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, 79332 + ... + 209017.
It is an arithmetic number, because the mean of its divisors is an integer number (2377734100).
Almost surely, 218697414207 is an apocalyptic number.
18697414207 is a deficient number, since it is larger than the sum of its proper divisors (324458593).
18697414207 is a wasteful number, since it uses less digits than its factorization.
18697414207 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 289473.
The product of its (nonzero) digits is 677376, while the sum is 49.
The spelling of 18697414207 in words is "eighteen billion, six hundred ninety-seven million, four hundred fourteen thousand, two hundred seven".
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