Base | Representation |
---|---|
bin | 111010000100… |
… | …0110100001010 |
3 | 2010021202102120 |
4 | 1310020310022 |
5 | 30243213220 |
6 | 3004312110 |
7 | 516530244 |
oct | 164106412 |
9 | 63252376 |
10 | 30444810 |
11 | 16204700 |
12 | a242636 |
13 | 63cc5a6 |
14 | 4087094 |
15 | 2a15a40 |
hex | 1d08d0a |
30444810 has 48 divisors (see below), whose sum is σ = 80323488. Its totient is φ = 7379680.
The previous prime is 30444803. The next prime is 30444823. The reversal of 30444810 is 1844403.
It is a super-2 number, since 2×304448102 = 1853772911872200, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564 + ... + 7823.
It is an arithmetic number, because the mean of its divisors is an integer number (1673406).
Almost surely, 230444810 is an apocalyptic number.
30444810 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 30444810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40161744).
30444810 is an abundant number, since it is smaller than the sum of its proper divisors (49878678).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30444810 is a wasteful number, since it uses less digits than its factorization.
30444810 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8419 (or 8408 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 24.
The square root of 30444810 is about 5517.6815783443. The cubic root of 30444810 is about 312.2514204520.
The spelling of 30444810 in words is "thirty million, four hundred forty-four thousand, eight hundred ten".
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