Base | Representation |
---|---|
bin | 111001100001… |
… | …1001000001100 |
3 | 2002202020212210 |
4 | 1303003020030 |
5 | 30210044442 |
6 | 2554230420 |
7 | 514231125 |
oct | 163031014 |
9 | 62666783 |
10 | 30159372 |
11 | 1602a201 |
12 | a125410 |
13 | 632c6a9 |
14 | 401104c |
15 | 29ab19c |
hex | 1cc320c |
30159372 has 12 divisors (see below), whose sum is σ = 70371896. Its totient is φ = 10053120.
The previous prime is 30159359. The next prime is 30159379. The reversal of 30159372 is 27395103.
It is a tau number, because it is divible by the number of its divisors (12).
It is not an unprimeable number, because it can be changed into a prime (30159379) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256629 + ... + 1256652.
Almost surely, 230159372 is an apocalyptic number.
It is an amenable number.
30159372 is an abundant number, since it is smaller than the sum of its proper divisors (40212524).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30159372 is a wasteful number, since it uses less digits than its factorization.
30159372 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2513288 (or 2513286 counting only the distinct ones).
The product of its (nonzero) digits is 5670, while the sum is 30.
The square root of 30159372 is about 5491.7549107731. The cubic root of 30159372 is about 311.2725078480.
The spelling of 30159372 in words is "thirty million, one hundred fifty-nine thousand, three hundred seventy-two".
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