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3040231 = 7341647
BaseRepresentation
bin1011100110001111100111
312201110102011
423212033213
51234241411
6145055051
734561435
oct13461747
95643364
103040231
111797197
121027487
13825a6c
14591d55
15400c21
hex2e63e7

3040231 has 4 divisors (see below), whose sum is σ = 3081952. Its totient is φ = 2998512.

The previous prime is 3040223. The next prime is 3040241. The reversal of 3040231 is 1320403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3040231 - 23 = 3040223 is a prime.

It is a super-2 number, since 2×30402312 = 18486009066722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3040241) 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, 20751 + ... + 20896.

It is an arithmetic number, because the mean of its divisors is an integer number (770488).

Almost surely, 23040231 is an apocalyptic number.

3040231 is a deficient number, since it is larger than the sum of its proper divisors (41721).

3040231 is an equidigital number, since it uses as much as digits as its factorization.

3040231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41720.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3040231 is about 1743.6258199511. The cubic root of 3040231 is about 144.8667980065.

Adding to 3040231 its reverse (1320403), we get a palindrome (4360634).

The spelling of 3040231 in words is "three million, forty thousand, two hundred thirty-one".

Divisors: 1 73 41647 3040231