Base | Representation |
---|---|
bin | 111010101000… |
… | …0111010100010 |
3 | 2010211202112100 |
4 | 1311100322202 |
5 | 30332141010 |
6 | 3014511230 |
7 | 522200241 |
oct | 165207242 |
9 | 63752470 |
10 | 30740130 |
11 | 16396573 |
12 | a365516 |
13 | 64a3b35 |
14 | 4122958 |
15 | 2a732c0 |
hex | 1d50ea2 |
30740130 has 24 divisors (see below), whose sum is σ = 79924572. Its totient is φ = 8197344.
The previous prime is 30740117. The next prime is 30740147. The reversal of 30740130 is 3104703.
It can be written as a sum of positive squares in 2 ways, for example, as 27846729 + 2893401 = 5277^2 + 1701^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170689 + ... + 170868.
Almost surely, 230740130 is an apocalyptic number.
30740130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30740130 is an abundant number, since it is smaller than the sum of its proper divisors (49184442).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30740130 is a wasteful number, since it uses less digits than its factorization.
30740130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 341570 (or 341567 counting only the distinct ones).
The product of its (nonzero) digits is 252, while the sum is 18.
The square root of 30740130 is about 5544.3782338509. The cubic root of 30740130 is about 313.2578045910.
Adding to 30740130 its reverse (3104703), we get a palindrome (33844833).
The spelling of 30740130 in words is "thirty million, seven hundred forty thousand, one hundred thirty".
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