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2283681 = 3761227
BaseRepresentation
bin1000101101100010100001
311022000121210
420231202201
51041034211
6120540333
725260651
oct10554241
94260553
102283681
11131a844
129216a9
1361c5ba
14436361
153019a6
hex22d8a1

2283681 has 4 divisors (see below), whose sum is σ = 3044912. Its totient is φ = 1522452.

The previous prime is 2283679. The next prime is 2283691. The reversal of 2283681 is 1863822.

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 not a de Polignac number, because 2283681 - 21 = 2283679 is a prime.

It is a super-2 number, since 2×22836812 = 10430397819522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2283691) 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, 380611 + ... + 380616.

It is an arithmetic number, because the mean of its divisors is an integer number (761228).

22283681 is an apocalyptic number.

It is an amenable number.

2283681 is a deficient number, since it is larger than the sum of its proper divisors (761231).

2283681 is an equidigital number, since it uses as much as digits as its factorization.

2283681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761230.

The product of its digits is 4608, while the sum is 30.

The square root of 2283681 is about 1511.1852963816. The cubic root of 2283681 is about 131.6876798879.

The spelling of 2283681 in words is "two million, two hundred eighty-three thousand, six hundred eighty-one".

Divisors: 1 3 761227 2283681