Base | Representation |
---|---|
bin | 111010001100… |
… | …0010000110111 |
3 | 2010101222020011 |
4 | 1310120100313 |
5 | 30302224322 |
6 | 3005521051 |
7 | 520212601 |
oct | 164302067 |
9 | 63358204 |
10 | 30508087 |
11 | 162481a5 |
12 | a273187 |
13 | 642232c |
14 | 40a2171 |
15 | 2a29677 |
hex | 1d18437 |
30508087 has 8 divisors (see below), whose sum is σ = 31994640. Its totient is φ = 29050560.
The previous prime is 30508057. The next prime is 30508099. The reversal of 30508087 is 78080503.
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-30508087 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 (30508057) 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, 5089 + ... + 9322.
It is an arithmetic number, because the mean of its divisors is an integer number (3999330).
Almost surely, 230508087 is an apocalyptic number.
30508087 is a deficient number, since it is larger than the sum of its proper divisors (1486553).
30508087 is a wasteful number, since it uses less digits than its factorization.
30508087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14513.
The product of its (nonzero) digits is 6720, while the sum is 31.
The square root of 30508087 is about 5523.4126226455. The cubic root of 30508087 is about 312.4676002676.
The spelling of 30508087 in words is "thirty million, five hundred eight thousand, eighty-seven".
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