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1442246693 is a prime number
BaseRepresentation
bin101010111110110…
…1111000000100101
310201111211201112012
41111331233000211
510423203343233
6355040204005
750511615566
oct12575570045
93644751465
101442246693
11680124318
12343009605
1319ca50b14
14d978c16d
158693c548
hex55f6f025

1442246693 has 2 divisors, whose sum is σ = 1442246694. Its totient is φ = 1442246692.

The previous prime is 1442246651. The next prime is 1442246711. The reversal of 1442246693 is 3966422441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1317544804 + 124701889 = 36298^2 + 11167^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442246693 - 28 = 1442246437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442246693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442246633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721123346 + 721123347.

It is an arithmetic number, because the mean of its divisors is an integer number (721123347).

Almost surely, 21442246693 is an apocalyptic number.

It is an amenable number.

1442246693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442246693 is an equidigital number, since it uses as much as digits as its factorization.

1442246693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 41.

The square root of 1442246693 is about 37976.9231639426. The cubic root of 1442246693 is about 1129.8302125666.

The spelling of 1442246693 in words is "one billion, four hundred forty-two million, two hundred forty-six thousand, six hundred ninety-three".