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2768081 = 3779947
BaseRepresentation
bin1010100011110011010001
312012122002112
422203303101
51202034311
6135155105
732346131
oct12436321
95178075
102768081
111620778
12b15a95
1375bc24
14520ac1
1539a28b
hex2a3cd1

2768081 has 8 divisors (see below), whose sum is σ = 2881920. Its totient is φ = 2656368.

The previous prime is 2768071. The next prime is 2768123. The reversal of 2768081 is 1808672.

2768081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2768081 is a prime.

It is a super-2 number, since 2×27680812 = 15324544845122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2768011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2450 + ... + 3396.

It is an arithmetic number, because the mean of its divisors is an integer number (360240).

22768081 is an apocalyptic number.

It is an amenable number.

2768081 is a deficient number, since it is larger than the sum of its proper divisors (113839).

2768081 is an equidigital number, since it uses as much as digits as its factorization.

2768081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 2768081 is about 1663.7550901500. The cubic root of 2768081 is about 140.4083485970.

The spelling of 2768081 in words is "two million, seven hundred sixty-eight thousand, eighty-one".

Divisors: 1 37 79 947 2923 35039 74813 2768081