Base | Representation |
---|---|
bin | 11100110111000111… |
… | …100011101000010111 |
3 | 2221222201012122200122 |
4 | 130313013203220113 |
5 | 1001431302431103 |
6 | 22123020302155 |
7 | 2144643252206 |
oct | 346707435027 |
9 | 87881178618 |
10 | 30989498903 |
11 | 12162845220 |
12 | 600a3a195b |
13 | 2bcb3965cc |
14 | 16dda2123d |
15 | c15933b38 |
hex | 7371e3a17 |
30989498903 has 8 divisors (see below), whose sum is σ = 34592929536. Its totient is φ = 27517102200.
The previous prime is 30989498899. The next prime is 30989498909.
30989498903 is nontrivially palindromic in base 10.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30989498903 - 22 = 30989498899 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30989498909) 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, 32757983 + ... + 32758928.
It is an arithmetic number, because the mean of its divisors is an integer number (4324116192).
Almost surely, 230989498903 is an apocalyptic number.
30989498903 is a deficient number, since it is larger than the sum of its proper divisors (3603430633).
30989498903 is a wasteful number, since it uses less digits than its factorization.
30989498903 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65516965.
The product of its (nonzero) digits is 15116544, while the sum is 62.
The spelling of 30989498903 in words is "thirty billion, nine hundred eighty-nine million, four hundred ninety-eight thousand, nine hundred three".
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