Base | Representation |
---|---|
bin | 111001001111… |
… | …1011011100000 |
3 | 2002110211022020 |
4 | 1302133123200 |
5 | 30140410102 |
6 | 2551141440 |
7 | 513051621 |
oct | 162373340 |
9 | 62424266 |
10 | 30013152 |
11 | 15a3a364 |
12 | a074880 |
13 | 62aac80 |
14 | 3db3a48 |
15 | 297cbbc |
hex | 1c9f6e0 |
30013152 has 48 divisors (see below), whose sum is σ = 84848400. Its totient is φ = 9234432.
The previous prime is 30013133. The next prime is 30013153. The reversal of 30013152 is 25131003.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30013153) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10777 + ... + 13272.
It is an arithmetic number, because the mean of its divisors is an integer number (1767675).
Almost surely, 230013152 is an apocalyptic number.
30013152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
30013152 is an abundant number, since it is smaller than the sum of its proper divisors (54835248).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30013152 is a wasteful number, since it uses less digits than its factorization.
30013152 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24075 (or 24067 counting only the distinct ones).
The product of its (nonzero) digits is 90, while the sum is 15.
The square root of 30013152 is about 5478.4260513399. The cubic root of 30013152 is about 310.7686509859.
Adding to 30013152 its reverse (25131003), we get a palindrome (55144155).
The spelling of 30013152 in words is "thirty million, thirteen thousand, one hundred fifty-two".
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