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4246021 = 13326617
BaseRepresentation
bin10000001100101000000101
321222201110001
4100030220011
52041333041
6231001301
751043033
oct20145005
97881401
104246021
11244010a
121509231
13b58850
147c7553
1558d131
hex40ca05

4246021 has 4 divisors (see below), whose sum is σ = 4572652. Its totient is φ = 3919392.

The previous prime is 4246019. The next prime is 4246043. The reversal of 4246021 is 1206424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2772225 + 1473796 = 1665^2 + 1214^2 .

It is a cyclic number.

It is not a de Polignac number, because 4246021 - 21 = 4246019 is a prime.

It is a Duffinian number.

4246021 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4246021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4246051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163296 + ... + 163321.

It is an arithmetic number, because the mean of its divisors is an integer number (1143163).

Almost surely, 24246021 is an apocalyptic number.

It is an amenable number.

4246021 is a deficient number, since it is larger than the sum of its proper divisors (326631).

4246021 is a wasteful number, since it uses less digits than its factorization.

4246021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326630.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4246021 is about 2060.5875375727. The cubic root of 4246021 is about 161.9300236314.

The spelling of 4246021 in words is "four million, two hundred forty-six thousand, twenty-one".

Divisors: 1 13 326617 4246021