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1442011201 = 1758182021
BaseRepresentation
bin101010111110011…
…0101100001000001
310201111101202111021
41111330311201001
510423123324301
6355031145441
750506615201
oct12574654101
93644352437
101442011201
1167aa833a4
12342b15281
1319c99a887
14d972a401
15868e28a1
hex55f35841

1442011201 has 4 divisors (see below), whose sum is σ = 1442110804. Its totient is φ = 1441911600.

The previous prime is 1442011187. The next prime is 1442011217. The reversal of 1442011201 is 1021102441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1021102441 = 2935210429.

It can be written as a sum of positive squares in 2 ways, for example, as 1017610000 + 424401201 = 31900^2 + 20601^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442011201 - 25 = 1442011169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442011261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23430 + ... + 58591.

It is an arithmetic number, because the mean of its divisors is an integer number (360527701).

Almost surely, 21442011201 is an apocalyptic number.

It is an amenable number.

1442011201 is a deficient number, since it is larger than the sum of its proper divisors (99603).

1442011201 is an equidigital number, since it uses as much as digits as its factorization.

1442011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99602.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1442011201 is about 37973.8225755585. The cubic root of 1442011201 is about 1129.7687158152.

Adding to 1442011201 its reverse (1021102441), we get a palindrome (2463113642).

The spelling of 1442011201 in words is "one billion, four hundred forty-two million, eleven thousand, two hundred one".

Divisors: 1 17581 82021 1442011201