Base | Representation |
---|---|
bin | 111010000010… |
… | …1011010001100 |
3 | 2010021001021220 |
4 | 1310011122030 |
5 | 30242241420 |
6 | 3004123340 |
7 | 516441465 |
oct | 164053214 |
9 | 63231256 |
10 | 30430860 |
11 | 161a5179 |
12 | a236550 |
13 | 63c6135 |
14 | 4081d6c |
15 | 2a11840 |
hex | 1d0568c |
30430860 has 48 divisors (see below), whose sum is σ = 88149600. Its totient is φ = 7834624.
The previous prime is 30430849. The next prime is 30430903. The reversal of 30430860 is 6803403.
It is a self number, because there is not a number n which added to its sum of digits gives 30430860.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7005 + ... + 10484.
It is an arithmetic number, because the mean of its divisors is an integer number (1836450).
Almost surely, 230430860 is an apocalyptic number.
30430860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30430860 is an abundant number, since it is smaller than the sum of its proper divisors (57718740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30430860 is a wasteful number, since it uses less digits than its factorization.
30430860 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17530 (or 17528 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 24.
The square root of 30430860 is about 5516.4173156135. The cubic root of 30430860 is about 312.2037213227.
The spelling of 30430860 in words is "thirty million, four hundred thirty thousand, eight hundred sixty".
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