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10442431 = 53732699
BaseRepresentation
bin100111110101…
…011010111111
3201122112022201
4213311122333
510133124211
61011452331
7154521256
oct47653277
921575281
1010442431
11599260a
1235b70a7
13221806c
14155b79d
15db40c1
hex9f56bf

10442431 has 8 divisors (see below), whose sum is σ = 10789200. Its totient is φ = 10101312.

The previous prime is 10442401. The next prime is 10442461. The reversal of 10442431 is 13424401.

It is an interprime number because it is at equal distance from previous prime (10442401) and next prime (10442461).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10442431 - 27 = 10442303 is a prime.

It is a super-2 number, since 2×104424312 = 218088730379522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10442399 and 10442408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10442401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2520 + ... + 5218.

It is an arithmetic number, because the mean of its divisors is an integer number (1348650).

Almost surely, 210442431 is an apocalyptic number.

10442431 is a deficient number, since it is larger than the sum of its proper divisors (346769).

10442431 is an equidigital number, since it uses as much as digits as its factorization.

10442431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 10442431 is about 3231.4750501899. The cubic root of 10442431 is about 218.5750256839.

Adding to 10442431 its reverse (13424401), we get a palindrome (23866832).

The spelling of 10442431 in words is "ten million, four hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 53 73 2699 3869 143047 197027 10442431