Base | Representation |
---|---|
bin | 11100011000001011… |
… | …001001101011111001 |
3 | 2220122112100000212101 |
4 | 130120023021223321 |
5 | 444400402110023 |
6 | 21555313143401 |
7 | 2126040452254 |
oct | 343013115371 |
9 | 86575300771 |
10 | 30470347513 |
11 | 11a16798091 |
12 | 5aa455ab61 |
13 | 2b47967438 |
14 | 1690ac209b |
15 | bd50861ad |
hex | 7182c9af9 |
30470347513 has 4 divisors (see below), whose sum is σ = 30495141540. Its totient is φ = 30445553488.
The previous prime is 30470347499. The next prime is 30470347517. The reversal of 30470347513 is 31574307403.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 18525387664 + 11944959849 = 136108^2 + 109293^2 .
It is a cyclic number.
It is not a de Polignac number, because 30470347513 - 213 = 30470339321 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30470347517) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12395170 + ... + 12397627.
It is an arithmetic number, because the mean of its divisors is an integer number (7623785385).
Almost surely, 230470347513 is an apocalyptic number.
It is an amenable number.
30470347513 is a deficient number, since it is larger than the sum of its proper divisors (24794027).
30470347513 is a wasteful number, since it uses less digits than its factorization.
30470347513 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24794026.
The product of its (nonzero) digits is 105840, while the sum is 37.
The spelling of 30470347513 in words is "thirty billion, four hundred seventy million, three hundred forty-seven thousand, five hundred thirteen".
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