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1442013511 = 8930015399
BaseRepresentation
bin101010111110011…
…0110000101000111
310201111101212122211
41111330312011013
510423123413021
6355031204251
750506625011
oct12574660507
93644355584
101442013511
1167aa85104
12342b16687
1319c99b943
14d972b1b1
15868e33e1
hex55f36147

1442013511 has 8 divisors (see below), whose sum is σ = 1458972000. Its totient is φ = 1425072000.

The previous prime is 1442013449. The next prime is 1442013527. The reversal of 1442013511 is 1153102441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1442013511 - 211 = 1442011463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442013571) 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 in 7 ways as a sum of consecutive naturals, for example, 264390 + ... + 269788.

It is an arithmetic number, because the mean of its divisors is an integer number (182371500).

Almost surely, 21442013511 is an apocalyptic number.

1442013511 is a deficient number, since it is larger than the sum of its proper divisors (16958489).

1442013511 is an equidigital number, since it uses as much as digits as its factorization.

1442013511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8489.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1442013511 is about 37973.8529912360. The cubic root of 1442013511 is about 1129.7693190847.

Adding to 1442013511 its reverse (1153102441), we get a palindrome (2595115952).

The spelling of 1442013511 in words is "one billion, four hundred forty-two million, thirteen thousand, five hundred eleven".

Divisors: 1 89 3001 5399 267089 480511 16202399 1442013511