Base | Representation |
---|---|
bin | 111001111000… |
… | …1001100000101 |
3 | 2010002211200101 |
4 | 1303301030011 |
5 | 30232114122 |
6 | 3002244101 |
7 | 515645146 |
oct | 163611405 |
9 | 63084611 |
10 | 30348037 |
11 | 16148a25 |
12 | a1b6631 |
13 | 6397525 |
14 | 405dacd |
15 | 29e7027 |
hex | 1cf1305 |
30348037 has 4 divisors (see below), whose sum is σ = 30713760. Its totient is φ = 29982316.
The previous prime is 30348013. The next prime is 30348053. The reversal of 30348037 is 73084303.
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: 73084303 = 59 ⋅1238717.
It is a cyclic number.
It is not a de Polignac number, because 30348037 - 27 = 30347909 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30347996 and 30348014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30348337) 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, 182737 + ... + 182902.
It is an arithmetic number, because the mean of its divisors is an integer number (7678440).
Almost surely, 230348037 is an apocalyptic number.
It is an amenable number.
30348037 is a deficient number, since it is larger than the sum of its proper divisors (365723).
30348037 is an equidigital number, since it uses as much as digits as its factorization.
30348037 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 365722.
The product of its (nonzero) digits is 6048, while the sum is 28.
The square root of 30348037 is about 5508.9052451463. The cubic root of 30348037 is about 311.9202246456.
The spelling of 30348037 in words is "thirty million, three hundred forty-eight thousand, thirty-seven".
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