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5020421 = 7838641
BaseRepresentation
bin10011001001101100000101
3100110001201112
4103021230011
52241123141
6255334405
760446540
oct23115405
910401645
105020421
112919a0a
121821405
13106a183
14949857
156927eb
hex4c9b05

5020421 has 8 divisors (see below), whose sum is σ = 5807424. Its totient is φ = 4250880.

The previous prime is 5020403. The next prime is 5020441. The reversal of 5020421 is 1240205.

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 5020421 - 218 = 4758277 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5020396 and 5020405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5020441) 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, 3740 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (725928).

Almost surely, 25020421 is an apocalyptic number.

It is an amenable number.

5020421 is a deficient number, since it is larger than the sum of its proper divisors (787003).

5020421 is an equidigital number, since it uses as much as digits as its factorization.

5020421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8731.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 5020421 is about 2240.6295990190. The cubic root of 5020421 is about 171.2300745816.

Adding to 5020421 its reverse (1240205), we get a palindrome (6260626).

The spelling of 5020421 in words is "five million, twenty thousand, four hundred twenty-one".

Divisors: 1 7 83 581 8641 60487 717203 5020421