Base | Representation |
---|---|
bin | 1011011110101101… |
… | …0010101000000101 |
3 | 21221202112102201001 |
4 | 2313223102220011 |
5 | 22302341012023 |
6 | 1225440533301 |
7 | 136235663242 |
oct | 26753225005 |
9 | 7852472631 |
10 | 3081579013 |
11 | 134151aa17 |
12 | 720021231 |
13 | 3a1578546 |
14 | 2133a05c9 |
15 | 13080a6ad |
hex | b7ad2a05 |
3081579013 has 8 divisors (see below), whose sum is σ = 3097575000. Its totient is φ = 3065607168.
The previous prime is 3081578989. The next prime is 3081579037. The reversal of 3081579013 is 3109751803.
It is a happy number.
3081579013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (3081578989) and next prime (3081579037).
It can be written as a sum of positive squares in 4 ways, for example, as 996004 + 3080583009 = 998^2 + 55503^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 3081579013 - 29 = 3081578501 is a prime.
It is a super-2 number, since 2×30815790132 = 18992258426724108338, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3081579113) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285723 + ... + 296311.
It is an arithmetic number, because the mean of its divisors is an integer number (387196875).
Almost surely, 23081579013 is an apocalyptic number.
It is an amenable number.
3081579013 is a deficient number, since it is larger than the sum of its proper divisors (15995987).
3081579013 is a wasteful number, since it uses less digits than its factorization.
3081579013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12071.
The product of its (nonzero) digits is 22680, while the sum is 37.
The square root of 3081579013 is about 55511.9717988832. The cubic root of 3081579013 is about 1455.2058632600.
The spelling of 3081579013 in words is "three billion, eighty-one million, five hundred seventy-nine thousand, thirteen".
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