Base | Representation |
---|---|
bin | 111001111010… |
… | …0110001000000 |
3 | 2010010120210000 |
4 | 1303310301000 |
5 | 30233101223 |
6 | 3002440000 |
7 | 516035646 |
oct | 163646100 |
9 | 63116700 |
10 | 30362688 |
11 | 16158a34 |
12 | a203000 |
13 | 63a10b5 |
14 | 4065196 |
15 | 29eb543 |
hex | 1cf4c40 |
30362688 has 70 divisors (see below), whose sum is σ = 90019886. Its totient is φ = 10119168.
The previous prime is 30362677. The next prime is 30362699. The reversal of 30362688 is 88626303.
It is an interprime number because it is at equal distance from previous prime (30362677) and next prime (30362699).
It can be written as a sum of positive squares in only one way, i.e., 29942784 + 419904 = 5472^2 + 648^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
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 9 ways as a sum of consecutive naturals, for example, 2256 + ... + 8112.
Almost surely, 230362688 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30362688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45009943).
30362688 is an abundant number, since it is smaller than the sum of its proper divisors (59657198).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30362688 is an equidigital number, since it uses as much as digits as its factorization.
30362688 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5881 (or 5862 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 36.
The square root of 30362688 is about 5510.2348407305. The cubic root of 30362688 is about 311.9704113952.
The spelling of 30362688 in words is "thirty million, three hundred sixty-two thousand, six hundred eighty-eight".
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