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5043021 = 31681007
BaseRepresentation
bin10011001111001101001101
3100111012201120
4103033031031
52242334041
6300031153
760602454
oct23171515
910435646
105043021
112934995
1218324b9
131077549
14953b9b
15699366
hex4cf34d

5043021 has 4 divisors (see below), whose sum is σ = 6724032. Its totient is φ = 3362012.

The previous prime is 5043019. The next prime is 5043079. The reversal of 5043021 is 1203405.

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 not a de Polignac number, because 5043021 - 21 = 5043019 is a prime.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5043001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840501 + ... + 840506.

It is an arithmetic number, because the mean of its divisors is an integer number (1681008).

Almost surely, 25043021 is an apocalyptic number.

It is an amenable number.

5043021 is a deficient number, since it is larger than the sum of its proper divisors (1681011).

5043021 is a wasteful number, since it uses less digits than its factorization.

5043021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681010.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 5043021 is about 2245.6671614467. The cubic root of 5043021 is about 171.4866272613.

Adding to 5043021 its reverse (1203405), we get a palindrome (6246426).

It can be divided in two parts, 50 and 43021, that added together give a triangular number (43071 = T293).

The spelling of 5043021 in words is "five million, forty-three thousand, twenty-one".

Divisors: 1 3 1681007 5043021