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2300021 is a prime number
BaseRepresentation
bin1000110001100001110101
311022212000222
420301201311
51042100041
6121144125
725356413
oct10614165
94285028
102300021
111331049
1292b045
13626b79
1443c2b3
1530674b
hex231875

2300021 has 2 divisors, whose sum is σ = 2300022. Its totient is φ = 2300020.

The previous prime is 2300017. The next prime is 2300029. The reversal of 2300021 is 1200032.

It is an a-pointer prime, because the next prime (2300029) can be obtained adding 2300021 to its sum of digits (8).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2283121 + 16900 = 1511^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 2300021 - 22 = 2300017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2299981 and 2300008.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2300029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1150010 + 1150011.

It is an arithmetic number, because the mean of its divisors is an integer number (1150011).

22300021 is an apocalyptic number.

It is an amenable number.

2300021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2300021 is an equidigital number, since it uses as much as digits as its factorization.

2300021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 2300021 is about 1516.5820122895. The cubic root of 2300021 is about 132.0010139194.

Adding to 2300021 its reverse (1200032), we get a palindrome (3500053).

The spelling of 2300021 in words is "two million, three hundred thousand, twenty-one".