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2382991 = 13183307
BaseRepresentation
bin1001000101110010001111
311111001211221
421011302033
51102223431
6123024211
726153332
oct11056217
94431757
102382991
111388416
1296b067
13655870
14460619
15321111
hex245c8f

2382991 has 4 divisors (see below), whose sum is σ = 2566312. Its totient is φ = 2199672.

The previous prime is 2382979. The next prime is 2383019. The reversal of 2382991 is 1992832.

2382991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2382991 - 221 = 285839 is a prime.

It is a super-2 number, since 2×23829912 = 11357292212162, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2382491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91641 + ... + 91666.

It is an arithmetic number, because the mean of its divisors is an integer number (641578).

22382991 is an apocalyptic number.

2382991 is a deficient number, since it is larger than the sum of its proper divisors (183321).

2382991 is a wasteful number, since it uses less digits than its factorization.

2382991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183320.

The product of its digits is 7776, while the sum is 34.

The square root of 2382991 is about 1543.6939463508. The cubic root of 2382991 is about 133.5695513994.

The spelling of 2382991 in words is "two million, three hundred eighty-two thousand, nine hundred ninety-one".

Divisors: 1 13 183307 2382991