Base | Representation |
---|---|
bin | 111001100001… |
… | …0110000011000 |
3 | 2002202011210100 |
4 | 1303002300120 |
5 | 30210022343 |
6 | 2554215400 |
7 | 514223520 |
oct | 163026030 |
9 | 62664710 |
10 | 30157848 |
11 | 16029046 |
12 | a124560 |
13 | 632baa6 |
14 | 4010680 |
15 | 29aa9d3 |
hex | 1cc2c18 |
30157848 has 96 divisors (see below), whose sum is σ = 95191200. Its totient is φ = 8446464.
The previous prime is 30157789. The next prime is 30157861. The reversal of 30157848 is 84875103.
It is a super-2 number, since 2×301578482 = 1818991591982208, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
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, 26148 + ... + 27276.
It is an arithmetic number, because the mean of its divisors is an integer number (991575).
Almost surely, 230157848 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 30157848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47595600).
30157848 is an abundant number, since it is smaller than the sum of its proper divisors (65033352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30157848 is a wasteful number, since it uses less digits than its factorization.
30157848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1201 (or 1194 counting only the distinct ones).
The product of its (nonzero) digits is 26880, while the sum is 36.
The square root of 30157848 is about 5491.6161555593. The cubic root of 30157848 is about 311.2672647316.
The spelling of 30157848 in words is "thirty million, one hundred fifty-seven thousand, eight hundred forty-eight".
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