Base | Representation |
---|---|
bin | 10010010011001… |
… | …000011000110101 |
3 | 210101200110122212 |
4 | 102103020120311 |
5 | 1112043124411 |
6 | 50244103205 |
7 | 10415333153 |
oct | 2223103065 |
9 | 711613585 |
10 | 307004981 |
11 | 148329428 |
12 | 86994b05 |
13 | 4b7b136a |
14 | 2cab83d3 |
15 | 1be4468b |
hex | 124c8635 |
307004981 has 8 divisors (see below), whose sum is σ = 311529600. Its totient is φ = 302496480.
The previous prime is 307004969. The next prime is 307005011. The reversal of 307004981 is 189400703.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-307004981 is a prime.
It is a super-2 number, since 2×3070049812 = 188504116717620722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (307004911) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37430 + ... + 44888.
It is an arithmetic number, because the mean of its divisors is an integer number (38941200).
Almost surely, 2307004981 is an apocalyptic number.
It is an amenable number.
307004981 is a deficient number, since it is larger than the sum of its proper divisors (4524619).
307004981 is an equidigital number, since it uses as much as digits as its factorization.
307004981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8059.
The product of its (nonzero) digits is 6048, while the sum is 32.
The square root of 307004981 is about 17521.5576077014. The cubic root of 307004981 is about 674.6033195558.
The spelling of 307004981 in words is "three hundred seven million, four thousand, nine hundred eighty-one".
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