Base | Representation |
---|---|
bin | 11100110000000111… |
… | …111010011001011011 |
3 | 2221200112101210111211 |
4 | 130300013322121123 |
5 | 1001211232323033 |
6 | 22103225203551 |
7 | 2142016650004 |
oct | 346007723133 |
9 | 87615353454 |
10 | 30872151643 |
11 | 12102585513 |
12 | 5b970305b7 |
13 | 2bacc8ac68 |
14 | 16cc1d61ab |
15 | c0a4a42cd |
hex | 7301fa65b |
30872151643 has 8 divisors (see below), whose sum is σ = 30919449600. Its totient is φ = 30824882088.
The previous prime is 30872151571. The next prime is 30872151671. The reversal of 30872151643 is 34615127803.
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 30872151643 - 213 = 30872143451 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30872151596 and 30872151605.
It is not an unprimeable number, because it can be changed into a prime (30872191643) 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, 3204688 + ... + 3214306.
It is an arithmetic number, because the mean of its divisors is an integer number (3864931200).
Almost surely, 230872151643 is an apocalyptic number.
30872151643 is a deficient number, since it is larger than the sum of its proper divisors (47297957).
30872151643 is an equidigital number, since it uses as much as digits as its factorization.
30872151643 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14201.
The product of its (nonzero) digits is 120960, while the sum is 40.
The spelling of 30872151643 in words is "thirty billion, eight hundred seventy-two million, one hundred fifty-one thousand, six hundred forty-three".
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