Base | Representation |
---|---|
bin | 111001101011… |
… | …0000111100000 |
3 | 2002220012120112 |
4 | 1303112013200 |
5 | 30220042102 |
6 | 3000030452 |
7 | 515003651 |
oct | 163260740 |
9 | 62805515 |
10 | 30237152 |
11 | 16082690 |
12 | a162428 |
13 | 6358c0a |
14 | 4031528 |
15 | 29c4252 |
hex | 1cd61e0 |
30237152 has 96 divisors (see below), whose sum is σ = 71414784. Its totient is φ = 12441600.
The previous prime is 30237139. The next prime is 30237161. The reversal of 30237152 is 25173203.
It is a super-2 number, since 2×302371522 = 1828570722142208, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185423 + ... + 185585.
It is an arithmetic number, because the mean of its divisors is an integer number (743904).
Almost surely, 230237152 is an apocalyptic number.
30237152 is a gapful number since it is divisible by the number (32) 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 30237152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35707392).
30237152 is an abundant number, since it is smaller than the sum of its proper divisors (41177632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30237152 is a wasteful number, since it uses less digits than its factorization.
30237152 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 232 (or 224 counting only the distinct ones).
The product of its (nonzero) digits is 1260, while the sum is 23.
The square root of 30237152 is about 5498.8318759533. The cubic root of 30237152 is about 311.5398652331.
The spelling of 30237152 in words is "thirty million, two hundred thirty-seven thousand, one hundred fifty-two".
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