Base | Representation |
---|---|
bin | 100100010111011111… |
… | …1111111111100111011 |
3 | 21110120210001102120210 |
4 | 1020232333333330323 |
5 | 2234421033042113 |
6 | 55513325522203 |
7 | 5433224352666 |
oct | 1105677777473 |
9 | 243523042523 |
10 | 78097940283 |
11 | 30137284500 |
12 | 13176a13363 |
13 | 749805c8ac |
14 | 3acc2d66dd |
15 | 20715056c3 |
hex | 122effff3b |
78097940283 has 96 divisors (see below), whose sum is σ = 122827138560. Its totient is φ = 44006054400.
The previous prime is 78097940281. The next prime is 78097940299. The reversal of 78097940283 is 38204979087.
It is not a de Polignac number, because 78097940283 - 21 = 78097940281 is a prime.
It is not an unprimeable number, because it can be changed into a prime (78097940281) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45325860 + ... + 45327582.
It is an arithmetic number, because the mean of its divisors is an integer number (1279449360).
Almost surely, 278097940283 is an apocalyptic number.
78097940283 is a deficient number, since it is larger than the sum of its proper divisors (44729198277).
78097940283 is a wasteful number, since it uses less digits than its factorization.
78097940283 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1921 (or 1910 counting only the distinct ones).
The product of its (nonzero) digits is 6096384, while the sum is 57.
The spelling of 78097940283 in words is "seventy-eight billion, ninety-seven million, nine hundred forty thousand, two hundred eighty-three".
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