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5243021 = 71744059
BaseRepresentation
bin10100000000000010001101
3100212101001222
4110000002031
52320234041
6304213125
762364530
oct24000215
910771058
105243021
112a61183
12190a1a5
1311175a4
149a6a17
156d874b
hex50008d

5243021 has 8 divisors (see below), whose sum is σ = 6344640. Its totient is φ = 4229568.

The previous prime is 5243003. The next prime is 5243023. The reversal of 5243021 is 1203425.

5243021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 5243021 - 222 = 1048717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5243023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21911 + ... + 22148.

It is an arithmetic number, because the mean of its divisors is an integer number (793080).

Almost surely, 25243021 is an apocalyptic number.

It is an amenable number.

5243021 is a deficient number, since it is larger than the sum of its proper divisors (1101619).

5243021 is a wasteful number, since it uses less digits than its factorization.

5243021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44083.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 5243021 is about 2289.7643983607. The cubic root of 5243021 is about 173.7242847922.

Adding to 5243021 its reverse (1203425), we get a palindrome (6446446).

The spelling of 5243021 in words is "five million, two hundred forty-three thousand, twenty-one".

Divisors: 1 7 17 119 44059 308413 749003 5243021