Base | Representation |
---|---|
bin | 1010101100111000… |
… | …1001011110100001 |
3 | 21102012022211220112 |
4 | 2223032021132201 |
5 | 21340342102034 |
6 | 1153014021105 |
7 | 131120543225 |
oct | 25316113641 |
9 | 7365284815 |
10 | 2872612769 |
11 | 1244573544 |
12 | 682047795 |
13 | 36a1a2090 |
14 | 1d3726785 |
15 | 11c2ce7ce |
hex | ab3897a1 |
2872612769 has 4 divisors (see below), whose sum is σ = 3093582996. Its totient is φ = 2651642544.
The previous prime is 2872612759. The next prime is 2872612783. The reversal of 2872612769 is 9672162782.
2872612769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 1281640000 + 1590972769 = 35800^2 + 39887^2 .
It is a cyclic number.
It is not a de Polignac number, because 2872612769 - 28 = 2872612513 is a prime.
It is a super-2 number, since 2×28726127692 = 16503808241243694722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2872612759) 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, 110485094 + ... + 110485119.
It is an arithmetic number, because the mean of its divisors is an integer number (773395749).
Almost surely, 22872612769 is an apocalyptic number.
It is an amenable number.
2872612769 is a deficient number, since it is larger than the sum of its proper divisors (220970227).
2872612769 is a wasteful number, since it uses less digits than its factorization.
2872612769 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 220970226.
The product of its digits is 1016064, while the sum is 50.
The square root of 2872612769 is about 53596.7608069741. The cubic root of 2872612769 is about 1421.5398176165.
The spelling of 2872612769 in words is "two billion, eight hundred seventy-two million, six hundred twelve thousand, seven hundred sixty-nine".
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