Base | Representation |
---|---|
bin | 111001010111… |
… | …1111001111101 |
3 | 2002121020212200 |
4 | 1302233321331 |
5 | 30200040022 |
6 | 2552422113 |
7 | 513452436 |
oct | 162577175 |
9 | 62536780 |
10 | 30080637 |
11 | 15a86034 |
12 | a0a7939 |
13 | 63028c2 |
14 | 3dd048d |
15 | 2992bac |
hex | 1cafe7d |
30080637 has 6 divisors (see below), whose sum is σ = 43449822. Its totient is φ = 20053752.
The previous prime is 30080623. The next prime is 30080657. The reversal of 30080637 is 73608003.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 29713401 + 367236 = 5451^2 + 606^2 .
It is not a de Polignac number, because 30080637 - 211 = 30078589 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 30080637.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30080657) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1671138 + ... + 1671155.
It is an arithmetic number, because the mean of its divisors is an integer number (7241637).
Almost surely, 230080637 is an apocalyptic number.
It is an amenable number.
30080637 is a deficient number, since it is larger than the sum of its proper divisors (13369185).
30080637 is a wasteful number, since it uses less digits than its factorization.
30080637 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3342299 (or 3342296 counting only the distinct ones).
The product of its (nonzero) digits is 3024, while the sum is 27.
The square root of 30080637 is about 5484.5817525131. The cubic root of 30080637 is about 311.0013992073.
The spelling of 30080637 in words is "thirty million, eighty thousand, six hundred thirty-seven".
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