Base | Representation |
---|---|
bin | 1000100111111100… |
… | …1101001011101101 |
3 | 12222100011121100222 |
4 | 2021333031023231 |
5 | 14220123011121 |
6 | 1021415301125 |
7 | 111240403043 |
oct | 21177151355 |
9 | 5870147328 |
10 | 2315047661 |
11 | a88869633 |
12 | 54737a7a5 |
13 | 2ab8133b4 |
14 | 17d668393 |
15 | d83950ab |
hex | 89fcd2ed |
2315047661 has 8 divisors (see below), whose sum is σ = 2355649824. Its totient is φ = 2274531120.
The previous prime is 2315047649. The next prime is 2315047663. The reversal of 2315047661 is 1667405132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2315047661 - 210 = 2315046637 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2315047663) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34406 + ... + 76248.
It is an arithmetic number, because the mean of its divisors is an integer number (294456228).
Almost surely, 22315047661 is an apocalyptic number.
It is an amenable number.
2315047661 is a deficient number, since it is larger than the sum of its proper divisors (40602163).
2315047661 is an equidigital number, since it uses as much as digits as its factorization.
2315047661 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42811.
The product of its (nonzero) digits is 30240, while the sum is 35.
The square root of 2315047661 is about 48114.9421801585. The cubic root of 2315047661 is about 1322.8785629199.
The spelling of 2315047661 in words is "two billion, three hundred fifteen million, forty-seven thousand, six hundred sixty-one".
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