Base | Representation |
---|---|
bin | 111010111000… |
… | …1101111011000 |
3 | 2011002120222010 |
4 | 1311301233120 |
5 | 30400441314 |
6 | 3021425520 |
7 | 523300236 |
oct | 165615730 |
9 | 64076863 |
10 | 30874584 |
11 | 16478594 |
12 | a40b2a0 |
13 | 65200b0 |
14 | 4159956 |
15 | 2a9d059 |
hex | 1d71bd8 |
30874584 has 64 divisors (see below), whose sum is σ = 88028640. Its totient is φ = 8939520.
The previous prime is 30874583. The next prime is 30874603. The reversal of 30874584 is 48547803.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30874583) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2394 + ... + 8214.
Almost surely, 230874584 is an apocalyptic number.
30874584 is a gapful number since it is divisible by the number (34) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30874584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44014320).
30874584 is an abundant number, since it is smaller than the sum of its proper divisors (57154056).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30874584 is a wasteful number, since it uses less digits than its factorization.
30874584 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5860 (or 5856 counting only the distinct ones).
The product of its (nonzero) digits is 107520, while the sum is 39.
The square root of 30874584 is about 5556.4902591474. The cubic root of 30874584 is about 313.7138588974.
The spelling of 30874584 in words is "thirty million, eight hundred seventy-four thousand, five hundred eighty-four".
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