Base | Representation |
---|---|
bin | 1010010000010001… |
… | …1110011100001001 |
3 | 21002211120102122201 |
4 | 2210010132130021 |
5 | 21114133333211 |
6 | 1133050320201 |
7 | 125133011554 |
oct | 24404363411 |
9 | 7084512581 |
10 | 2752636681 |
11 | 1192878753 |
12 | 649a29061 |
13 | 34b386002 |
14 | 1c181569b |
15 | 1119d10c1 |
hex | a411e709 |
2752636681 has 4 divisors (see below), whose sum is σ = 2799291600. Its totient is φ = 2705981764.
The previous prime is 2752636669. The next prime is 2752636687. The reversal of 2752636681 is 1866362572.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 2752636681 - 219 = 2752112393 is a prime.
It is a super-2 number, since 2×27526366812 = 15154017395173391522, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2752636687) 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, 23327371 + ... + 23327488.
It is an arithmetic number, because the mean of its divisors is an integer number (699822900).
Almost surely, 22752636681 is an apocalyptic number.
It is an amenable number.
2752636681 is a deficient number, since it is larger than the sum of its proper divisors (46654919).
2752636681 is an equidigital number, since it uses as much as digits as its factorization.
2752636681 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46654918.
The product of its digits is 725760, while the sum is 46.
The square root of 2752636681 is about 52465.5761523687. The cubic root of 2752636681 is about 1401.4672849584.
It can be divided in two parts, 275 and 2636681, that added together give a triangular number (2636956 = T2296).
The spelling of 2752636681 in words is "two billion, seven hundred fifty-two million, six hundred thirty-six thousand, six hundred eighty-one".
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