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1422442081 is a prime number
BaseRepresentation
bin101010011001000…
…1011111001100001
310200010120112201001
41110302023321201
510403121121311
6353051512001
750151362314
oct12462137141
93603515631
101422442081
1166aa27875
12338458601
13198908608
14d6cb497b
1584d294c1
hex54c8be61

1422442081 has 2 divisors, whose sum is σ = 1422442082. Its totient is φ = 1422442080.

The previous prime is 1422442031. The next prime is 1422442111. The reversal of 1422442081 is 1802442241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 836366400 + 586075681 = 28920^2 + 24209^2 .

It is a cyclic number.

It is not a de Polignac number, because 1422442081 - 27 = 1422441953 is a prime.

It is a super-2 number, since 2×14224420812 = 4046682947599221122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1422442001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711221040 + 711221041.

It is an arithmetic number, because the mean of its divisors is an integer number (711221041).

Almost surely, 21422442081 is an apocalyptic number.

It is an amenable number.

1422442081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422442081 is an equidigital number, since it uses as much as digits as its factorization.

1422442081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 1422442081 is about 37715.2764937499. The cubic root of 1422442081 is about 1124.6348328566.

The spelling of 1422442081 in words is "one billion, four hundred twenty-two million, four hundred forty-two thousand, eighty-one".