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4850021 = 11440911
BaseRepresentation
bin10010100000000101100101
3100010101222102
4102200011211
52220200041
6251541445
756140001
oct22400545
910111872
104850021
112812990
12175a885
13100a747
14903701
1565c09b
hex4a0165

4850021 has 4 divisors (see below), whose sum is σ = 5290944. Its totient is φ = 4409100.

The previous prime is 4850017. The next prime is 4850023. The reversal of 4850021 is 1200584.

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 4850021 - 22 = 4850017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4849975 and 4850002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4850023) 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, 220445 + ... + 220466.

It is an arithmetic number, because the mean of its divisors is an integer number (1322736).

Almost surely, 24850021 is an apocalyptic number.

It is an amenable number.

4850021 is a deficient number, since it is larger than the sum of its proper divisors (440923).

4850021 is a wasteful number, since it uses less digits than its factorization.

4850021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440922.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 4850021 is about 2202.2763223538. The cubic root of 4850021 is about 169.2704724444.

The spelling of 4850021 in words is "four million, eight hundred fifty thousand, twenty-one".

Divisors: 1 11 440911 4850021