Base | Representation |
---|---|
bin | 111010001001… |
… | …0111000010101 |
3 | 2010100211222111 |
4 | 1310102320111 |
5 | 30301023122 |
6 | 3005231021 |
7 | 520061401 |
oct | 164227025 |
9 | 63324874 |
10 | 30486037 |
11 | 1623267a |
12 | a262471 |
13 | 641529a |
14 | 4098101 |
15 | 2a22d77 |
hex | 1d12e15 |
30486037 has 2 divisors, whose sum is σ = 30486038. Its totient is φ = 30486036.
The previous prime is 30486023. The next prime is 30486073. The reversal of 30486037 is 73068403.
Together with next prime (30486073) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 18714276 + 11771761 = 4326^2 + 3431^2 .
It is a cyclic number.
It is not a de Polignac number, because 30486037 - 211 = 30483989 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30486437) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15243018 + 15243019.
It is an arithmetic number, because the mean of its divisors is an integer number (15243019).
Almost surely, 230486037 is an apocalyptic number.
It is an amenable number.
30486037 is a deficient number, since it is larger than the sum of its proper divisors (1).
30486037 is an equidigital number, since it uses as much as digits as its factorization.
30486037 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 12096, while the sum is 31.
The square root of 30486037 is about 5521.4162132554. The cubic root of 30486037 is about 312.3923025149.
The spelling of 30486037 in words is "thirty million, four hundred eighty-six thousand, thirty-seven".
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