Base | Representation |
---|---|
bin | 1010100010111101… |
… | …0101000100101001 |
3 | 21022021222122121202 |
4 | 2220233111010221 |
5 | 21244212314434 |
6 | 1144525413545 |
7 | 130103633111 |
oct | 25057250451 |
9 | 7267878552 |
10 | 2830979369 |
11 | 1223017779 |
12 | 67010a2b5 |
13 | 361685c2a |
14 | 1cbdaa041 |
15 | 118808a7e |
hex | a8bd5129 |
2830979369 has 4 divisors (see below), whose sum is σ = 2831103444. Its totient is φ = 2830855296.
The previous prime is 2830979351. The next prime is 2830979381. The reversal of 2830979369 is 9639790382.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in 2 ways, for example, as 1459240000 + 1371739369 = 38200^2 + 37037^2 .
It is a cyclic number.
It is not a de Polignac number, because 2830979369 - 220 = 2829930793 is a prime.
It is a super-2 number, since 2×28309793692 = 16028888375407276322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2830979329) 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, 16832 + ... + 77105.
It is an arithmetic number, because the mean of its divisors is an integer number (707775861).
Almost surely, 22830979369 is an apocalyptic number.
It is an amenable number.
2830979369 is a deficient number, since it is larger than the sum of its proper divisors (124075).
2830979369 is an equidigital number, since it uses as much as digits as its factorization.
2830979369 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124074.
The product of its (nonzero) digits is 4408992, while the sum is 56.
The square root of 2830979369 is about 53206.9485029916. The cubic root of 2830979369 is about 1414.6388085334.
The spelling of 2830979369 in words is "two billion, eight hundred thirty million, nine hundred seventy-nine thousand, three hundred sixty-nine".
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