Base | Representation |
---|---|
bin | 111011000111… |
… | …1011001000101 |
3 | 2011022202120101 |
4 | 1312033121011 |
5 | 30413333122 |
6 | 3024204101 |
7 | 524314312 |
oct | 166173105 |
9 | 64282511 |
10 | 30996037 |
11 | 16550866 |
12 | a469631 |
13 | 6563467 |
14 | 418bd09 |
15 | 2ac4027 |
hex | 1d8f645 |
30996037 has 2 divisors, whose sum is σ = 30996038. Its totient is φ = 30996036.
The previous prime is 30996029. The next prime is 30996061. The reversal of 30996037 is 73069903.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 30625156 + 370881 = 5534^2 + 609^2 .
It is an emirp because it is prime and its reverse (73069903) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30996037 - 23 = 30996029 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30995987 and 30996005.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30996067) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15498018 + 15498019.
It is an arithmetic number, because the mean of its divisors is an integer number (15498019).
Almost surely, 230996037 is an apocalyptic number.
It is an amenable number.
30996037 is a deficient number, since it is larger than the sum of its proper divisors (1).
30996037 is an equidigital number, since it uses as much as digits as its factorization.
30996037 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 30618, while the sum is 37.
The square root of 30996037 is about 5567.4084635493. The cubic root of 30996037 is about 314.1246783337.
The spelling of 30996037 in words is "thirty million, nine hundred ninety-six thousand, thirty-seven".
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