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2242431 = 33232157
BaseRepresentation
bin1000100011011101111111
311012221001000
420203131333
51033224211
6120021343
725026462
oct10433577
94187030
102242431
1112a1854
12901853
136068a9
144252d9
152e4656
hex22377f

2242431 has 24 divisors (see below), whose sum is σ = 3494960. Its totient is φ = 1420848.

The previous prime is 2242381. The next prime is 2242433. The reversal of 2242431 is 1342422.

It is not a de Polignac number, because 2242431 - 29 = 2241919 is a prime.

It is a super-2 number, since 2×22424312 = 10056993579522, which contains 22 as substring.

It is a Duffinian number.

2242431 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14205 + ... + 14361.

22242431 is an apocalyptic number.

2242431 is a deficient number, since it is larger than the sum of its proper divisors (1252529).

2242431 is a wasteful number, since it uses less digits than its factorization.

2242431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 183 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 2242431 is about 1497.4748745805. The cubic root of 2242431 is about 130.8899684032.

Adding to 2242431 its reverse (1342422), we get a palindrome (3584853).

Subtracting from 2242431 its reverse (1342422), we obtain a palindrome (900009).

The spelling of 2242431 in words is "two million, two hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 3 9 23 27 69 157 207 471 529 621 1413 1587 3611 4239 4761 10833 14283 32499 83053 97497 249159 747477 2242431