Base | Representation |
---|---|
bin | 1010100010000101111001 |
3 | 12012021111021 |
4 | 22202011321 |
5 | 1201323311 |
6 | 135102441 |
7 | 32316541 |
oct | 12420571 |
9 | 5167437 |
10 | 2761081 |
11 | 1616494 |
12 | b11a21 |
13 | 75899b |
14 | 51c321 |
15 | 398171 |
hex | 2a2179 |
2761081 has 4 divisors (see below), whose sum is σ = 2881152. Its totient is φ = 2641012.
The previous prime is 2761039. The next prime is 2761091. The reversal of 2761081 is 1801672.
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 2761081 - 213 = 2752889 is a prime.
It is a super-2 number, since 2×27610812 = 15247136577122, which contains 22 as substring.
It is a Duffinian number.
2761081 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (2761091) 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, 60001 + ... + 60046.
It is an arithmetic number, because the mean of its divisors is an integer number (720288).
22761081 is an apocalyptic number.
It is an amenable number.
2761081 is a deficient number, since it is larger than the sum of its proper divisors (120071).
2761081 is a wasteful number, since it uses less digits than its factorization.
2761081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 120070.
The product of its (nonzero) digits is 672, while the sum is 25.
The square root of 2761081 is about 1661.6500835013. The cubic root of 2761081 is about 140.2898925139.
The spelling of 2761081 in words is "two million, seven hundred sixty-one thousand, eighty-one".
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