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2240031 = 3746677
BaseRepresentation
bin1000100010111000011111
311012210202010
420202320133
51033140111
6120002303
725016463
oct10427037
94183663
102240031
11129aa72
12900393
13605781
144244a3
152e3aa6
hex222e1f

2240031 has 4 divisors (see below), whose sum is σ = 2986712. Its totient is φ = 1493352.

The previous prime is 2240027. The next prime is 2240057. The reversal of 2240031 is 1300422.

2240031 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 is not a de Polignac number, because 2240031 - 22 = 2240027 is a prime.

It is a super-2 number, since 2×22400312 = 10035477761922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

2240031 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2239989 and 2240016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240071) 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 3 ways as a sum of consecutive naturals, for example, 373336 + ... + 373341.

It is an arithmetic number, because the mean of its divisors is an integer number (746678).

22240031 is an apocalyptic number.

2240031 is a deficient number, since it is larger than the sum of its proper divisors (746681).

2240031 is an equidigital number, since it uses as much as digits as its factorization.

2240031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746680.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2240031 is about 1496.6733110469. The cubic root of 2240031 is about 130.8432559944.

Adding to 2240031 its reverse (1300422), we get a palindrome (3540453).

The spelling of 2240031 in words is "two million, two hundred forty thousand, thirty-one".

Divisors: 1 3 746677 2240031