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1442020241 = 1798055979
BaseRepresentation
bin101010111110011…
…0111101110010001
310201111102012220002
41111330313232101
510423124121431
6355031255345
750506653434
oct12574675621
93644365802
101442020241
1167aa8a172
12342b1a555
1319c9a1a1c
14d972d81b
15868e53cb
hex55f37b91

1442020241 has 4 divisors (see below), whose sum is σ = 1450076400. Its totient is φ = 1433964084.

The previous prime is 1442020201. The next prime is 1442020249. The reversal of 1442020241 is 1420202441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1442020241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442020249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4027811 + ... + 4028168.

It is an arithmetic number, because the mean of its divisors is an integer number (362519100).

Almost surely, 21442020241 is an apocalyptic number.

It is an amenable number.

1442020241 is a deficient number, since it is larger than the sum of its proper divisors (8056159).

1442020241 is an equidigital number, since it uses as much as digits as its factorization.

1442020241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8056158.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1442020241 is about 37973.9416047373. The cubic root of 1442020241 is about 1129.7710766586.

Adding to 1442020241 its reverse (1420202441), we get a palindrome (2862222682).

The spelling of 1442020241 in words is "one billion, four hundred forty-two million, twenty thousand, two hundred forty-one".

Divisors: 1 179 8055979 1442020241