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2430993 = 31942649
BaseRepresentation
bin1001010001100000010001
311120111200210
421101200101
51110242433
6124034333
726443305
oct11214021
94514623
102430993
111410494
129929a9
13671676
14473d05
15330463
hex251811

2430993 has 8 divisors (see below), whose sum is σ = 3412000. Its totient is φ = 1535328.

The previous prime is 2430991. The next prime is 2430997. The reversal of 2430993 is 3990342.

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

It is not a de Polignac number, because 2430993 - 21 = 2430991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2430993.

It is not an unprimeable number, because it can be changed into a prime (2430991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21268 + ... + 21381.

It is an arithmetic number, because the mean of its divisors is an integer number (426500).

22430993 is an apocalyptic number.

It is an amenable number.

2430993 is a deficient number, since it is larger than the sum of its proper divisors (981007).

2430993 is a wasteful number, since it uses less digits than its factorization.

2430993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42671.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 2430993 is about 1559.1641991785. The cubic root of 2430993 is about 134.4604528037.

The spelling of 2430993 in words is "two million, four hundred thirty thousand, nine hundred ninety-three".

Divisors: 1 3 19 57 42649 127947 810331 2430993