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2240043 = 313193023
BaseRepresentation
bin1000100010111000101011
311012210202120
420202320223
51033140133
6120002323
725016511
oct10427053
94183676
102240043
11129aa83
129003a3
13605790
144244b1
152e3ab3
hex222e2b

2240043 has 16 divisors (see below), whose sum is σ = 3386880. Its totient is φ = 1305504.

The previous prime is 2240027. The next prime is 2240057. The reversal of 2240043 is 3400422.

It is a happy number.

It is not a de Polignac number, because 2240043 - 24 = 2240027 is a prime.

2240043 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771 + ... + 2252.

It is an arithmetic number, because the mean of its divisors is an integer number (211680).

22240043 is an apocalyptic number.

2240043 is a deficient number, since it is larger than the sum of its proper divisors (1146837).

2240043 is a wasteful number, since it uses less digits than its factorization.

2240043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2240043 is about 1496.6773199324. The cubic root of 2240043 is about 130.8434896394.

Adding to 2240043 its reverse (3400422), we get a palindrome (5640465).

The spelling of 2240043 in words is "two million, two hundred forty thousand, forty-three".

Divisors: 1 3 13 19 39 57 247 741 3023 9069 39299 57437 117897 172311 746681 2240043