Base | Representation |
---|---|
bin | 11100101011110100… |
… | …100011110101101101 |
3 | 2221111111120120102111 |
4 | 130223310203311231 |
5 | 1001034243012040 |
6 | 22052130124021 |
7 | 2140152264604 |
oct | 345364436555 |
9 | 87444516374 |
10 | 30799969645 |
11 | 12075864075 |
12 | 5b76a20611 |
13 | 2b9b037213 |
14 | 16c27a6a3b |
15 | c03e96dea |
hex | 72bd23d6d |
30799969645 has 32 divisors (see below), whose sum is σ = 38798035200. Its totient is φ = 23472263232.
The previous prime is 30799969643. The next prime is 30799969649. The reversal of 30799969645 is 54696999703.
It is not a de Polignac number, because 30799969645 - 21 = 30799969643 is a prime.
It is a super-3 number, since 3×307999696453 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30799969643) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17215411 + ... + 17217199.
It is an arithmetic number, because the mean of its divisors is an integer number (1212438600).
Almost surely, 230799969645 is an apocalyptic number.
It is an amenable number.
30799969645 is a deficient number, since it is larger than the sum of its proper divisors (7998065555).
30799969645 is an equidigital number, since it uses as much as digits as its factorization.
30799969645 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2146 (or 2100 counting only the distinct ones).
The product of its (nonzero) digits is 99202320, while the sum is 67.
The spelling of 30799969645 in words is "thirty billion, seven hundred ninety-nine million, nine hundred sixty-nine thousand, six hundred forty-five".
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