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2442431 = 19128549
BaseRepresentation
bin1001010100010010111111
311121002101102
421110102333
51111124211
6124203315
726521535
oct11242277
94532342
102442431
111419042
1299953b
13676934
14478155
15333a3b
hex2544bf

2442431 has 4 divisors (see below), whose sum is σ = 2571000. Its totient is φ = 2313864.

The previous prime is 2442413. The next prime is 2442437. The reversal of 2442431 is 1342442.

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 2442431 - 26 = 2442367 is a prime.

It is a super-2 number, since 2×24424312 = 11930938379522, 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 (2442437) 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, 64256 + ... + 64293.

It is an arithmetic number, because the mean of its divisors is an integer number (642750).

22442431 is an apocalyptic number.

2442431 is a deficient number, since it is larger than the sum of its proper divisors (128569).

2442431 is a wasteful number, since it uses less digits than its factorization.

2442431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128568.

The product of its digits is 768, while the sum is 20.

The square root of 2442431 is about 1562.8278855971. The cubic root of 2442431 is about 134.6710050177.

Adding to 2442431 its reverse (1342442), we get a palindrome (3784873).

The spelling of 2442431 in words is "two million, four hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 19 128549 2442431