Base | Representation |
---|---|
bin | 11100011000010011… |
… | …101010011101111001 |
3 | 2220122200112101210201 |
4 | 130120103222131321 |
5 | 444401440011222 |
6 | 21555433042201 |
7 | 2126065435003 |
oct | 343023523571 |
9 | 86580471721 |
10 | 30472578937 |
11 | 11a17a81639 |
12 | 5aa5256361 |
13 | 2b48268cc8 |
14 | 1691103373 |
15 | bd5377427 |
hex | 7184ea779 |
30472578937 has 8 divisors (see below), whose sum is σ = 30938465376. Its totient is φ = 30007018272.
The previous prime is 30472578923. The next prime is 30472578977. The reversal of 30472578937 is 73987527403.
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 30472578937 - 231 = 28325095289 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30472578977) 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, 110493 + ... + 270469.
It is an arithmetic number, because the mean of its divisors is an integer number (3867308172).
Almost surely, 230472578937 is an apocalyptic number.
It is an amenable number.
30472578937 is a deficient number, since it is larger than the sum of its proper divisors (465886439).
30472578937 is a wasteful number, since it uses less digits than its factorization.
30472578937 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 162887.
The product of its (nonzero) digits is 8890560, while the sum is 55.
The spelling of 30472578937 in words is "thirty billion, four hundred seventy-two million, five hundred seventy-eight thousand, nine hundred thirty-seven".
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