Base | Representation |
---|---|
bin | 111001011011… |
… | …0011000000001 |
3 | 2002122121020011 |
4 | 1302312120001 |
5 | 30201412022 |
6 | 2553144521 |
7 | 513622624 |
oct | 162663001 |
9 | 62577204 |
10 | 30107137 |
11 | 15aa3a35 |
12 | a0bb141 |
13 | 6311998 |
14 | 3dd9dbb |
15 | 299a977 |
hex | 1cb6601 |
30107137 has 4 divisors (see below), whose sum is σ = 30488320. Its totient is φ = 29725956.
The previous prime is 30107131. The next prime is 30107141. The reversal of 30107137 is 73170103.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73170103 = 29 ⋅2523107.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30107137 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30107131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190473 + ... + 190630.
It is an arithmetic number, because the mean of its divisors is an integer number (7622080).
Almost surely, 230107137 is an apocalyptic number.
It is an amenable number.
30107137 is a deficient number, since it is larger than the sum of its proper divisors (381183).
30107137 is an equidigital number, since it uses as much as digits as its factorization.
30107137 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 381182.
The product of its (nonzero) digits is 441, while the sum is 22.
The square root of 30107137 is about 5486.9970840160. The cubic root of 30107137 is about 311.0926995576.
The spelling of 30107137 in words is "thirty million, one hundred seven thousand, one hundred thirty-seven".
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