Base | Representation |
---|---|
bin | 111100010111110… |
… | …011111101001001 |
3 | 2121120220101101220 |
4 | 330113303331021 |
5 | 4033244000311 |
6 | 244301232253 |
7 | 34046203401 |
oct | 7427637511 |
9 | 2546811356 |
10 | 1012875081 |
11 | 47a818049 |
12 | 243262689 |
13 | 131ac758a |
14 | 9873d801 |
15 | 5ddc6206 |
hex | 3c5f3f49 |
1012875081 has 16 divisors (see below), whose sum is σ = 1409965056. Its totient is φ = 645548816.
The previous prime is 1012875077. The next prime is 1012875119. The reversal of 1012875081 is 1805782101.
It is a cyclic number.
It is not a de Polignac number, because 1012875081 - 22 = 1012875077 is a prime.
It is a super-2 number, since 2×10128750812 = 2051831859421513122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1012875881) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218716 + ... + 223298.
It is an arithmetic number, because the mean of its divisors is an integer number (88122816).
Almost surely, 21012875081 is an apocalyptic number.
It is an amenable number.
1012875081 is a deficient number, since it is larger than the sum of its proper divisors (397089975).
1012875081 is a wasteful number, since it uses less digits than its factorization.
1012875081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7812.
The product of its (nonzero) digits is 4480, while the sum is 33.
The square root of 1012875081 is about 31825.6984369550. The cubic root of 1012875081 is about 1004.2734056571.
The spelling of 1012875081 in words is "one billion, twelve million, eight hundred seventy-five thousand, eighty-one".
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