Base | Representation |
---|---|
bin | 100111000010010… |
… | …1110110001010000 |
3 | 10101021201221020011 |
4 | 1032010232301100 |
5 | 10140311103432 |
6 | 333550524304 |
7 | 44313436354 |
oct | 11604566120 |
9 | 3337657204 |
10 | 1309862992 |
11 | 6124244a9 |
12 | 306806694 |
13 | 17b4ac379 |
14 | c5d6b464 |
15 | 79edc847 |
hex | 4e12ec50 |
1309862992 has 20 divisors (see below), whose sum is σ = 2539117620. Its totient is φ = 654606848.
The previous prime is 1309862969. The next prime is 1309862993. The reversal of 1309862992 is 2992689031.
It can be written as a sum of positive squares in 2 ways, for example, as 501939216 + 807923776 = 22404^2 + 28424^2 .
It is a super-2 number, since 2×13098629922 = 3431482115622384128, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1309862993) 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 3 ways as a sum of consecutive naturals, for example, 14838 + ... + 53290.
It is an arithmetic number, because the mean of its divisors is an integer number (126955881).
Almost surely, 21309862992 is an apocalyptic number.
It is an amenable number.
1309862992 is a deficient number, since it is larger than the sum of its proper divisors (1229254628).
1309862992 is a wasteful number, since it uses less digits than its factorization.
1309862992 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40590 (or 40584 counting only the distinct ones).
The product of its (nonzero) digits is 419904, while the sum is 49.
The square root of 1309862992 is about 36192.0293987502. The cubic root of 1309862992 is about 1094.1460344900.
The spelling of 1309862992 in words is "one billion, three hundred nine million, eight hundred sixty-two thousand, nine hundred ninety-two".
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