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2626021 is a prime number
BaseRepresentation
bin1010000001000111100101
311221102020001
422001013211
51133013041
6132141301
731215016
oct12010745
94842201
102626021
111533a72
12a67831
1370c378
144c500d
1536d131
hex2811e5

2626021 has 2 divisors, whose sum is σ = 2626022. Its totient is φ = 2626020.

The previous prime is 2626003. The next prime is 2626027. The reversal of 2626021 is 1206262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2604996 + 21025 = 1614^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2626021 - 217 = 2494949 is a prime.

It is a Chen prime.

It is the 1621-st Hogben number.

It is a self number, because there is not a number n which added to its sum of digits gives 2626021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2626027) by changing a digit.

It is a nontrivial repunit in base 1620.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1313010 + 1313011.

It is an arithmetic number, because the mean of its divisors is an integer number (1313011).

22626021 is an apocalyptic number.

It is an amenable number.

2626021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2626021 is an equidigital number, since it uses as much as digits as its factorization.

2626021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2626021 is about 1620.5002314100. The cubic root of 2626021 is about 137.9640913362.

The spelling of 2626021 in words is "two million, six hundred twenty-six thousand, twenty-one".