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4252389 = 31417463
BaseRepresentation
bin10000001110001011100101
322000001011220
4100032023211
52042034024
6231050553
751100431
oct20161345
98001156
104252389
112444979
121510a59
13b5b70b
147c99c1
1558ee79
hex40e2e5

4252389 has 4 divisors (see below), whose sum is σ = 5669856. Its totient is φ = 2834924.

The previous prime is 4252351. The next prime is 4252393. The reversal of 4252389 is 9832524.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4252389 is a prime.

It is a d-powerful number, because it can be written as 4 + 219 + 55 + 221 + 313 + 85 + 93 .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4252319) 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, 708729 + ... + 708734.

It is an arithmetic number, because the mean of its divisors is an integer number (1417464).

Almost surely, 24252389 is an apocalyptic number.

It is an amenable number.

4252389 is a deficient number, since it is larger than the sum of its proper divisors (1417467).

4252389 is a wasteful number, since it uses less digits than its factorization.

4252389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417466.

The product of its digits is 17280, while the sum is 33.

The square root of 4252389 is about 2062.1321490147. The cubic root of 4252389 is about 162.0109350948.

The spelling of 4252389 in words is "four million, two hundred fifty-two thousand, three hundred eighty-nine".

Divisors: 1 3 1417463 4252389