Base | Representation |
---|---|
bin | 11100001100100001… |
… | …001000000111001001 |
3 | 2220010220100020220221 |
4 | 130030201020013021 |
5 | 444000321003031 |
6 | 21524045350041 |
7 | 2121144253336 |
oct | 341441100711 |
9 | 86126306827 |
10 | 30274781641 |
11 | 119263635a5 |
12 | 5a4ab68321 |
13 | 2b162a34a0 |
14 | 1672b3598d |
15 | bc2d05a11 |
hex | 70c8481c9 |
30274781641 has 8 divisors (see below), whose sum is σ = 32718822080. Its totient is φ = 27847199952.
The previous prime is 30274781633. The next prime is 30274781683. The reversal of 30274781641 is 14618747203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30274781641 - 23 = 30274781633 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30274784641) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4110861 + ... + 4118218.
It is an arithmetic number, because the mean of its divisors is an integer number (4089852760).
Almost surely, 230274781641 is an apocalyptic number.
It is an amenable number.
30274781641 is a deficient number, since it is larger than the sum of its proper divisors (2444040439).
30274781641 is a wasteful number, since it uses less digits than its factorization.
30274781641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8229375.
The product of its (nonzero) digits is 225792, while the sum is 43.
The spelling of 30274781641 in words is "thirty billion, two hundred seventy-four million, seven hundred eighty-one thousand, six hundred forty-one".
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