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1442222441 = 11131111131
BaseRepresentation
bin101010111110110…
…1001000101101001
310201111210111020222
41111331221011221
510423202104231
6355035455425
750511455102
oct12575510551
93644714228
101442222441
11680108080
12342bb7575
1319ca42a7a
14d97833a9
158693527b
hex55f69169

1442222441 has 4 divisors (see below), whose sum is σ = 1573333584. Its totient is φ = 1311111300.

The previous prime is 1442222423. The next prime is 1442222447.

It is a happy number.

1442222441 is nontrivially palindromic in base 10.

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 not a de Polignac number, because 1442222441 - 214 = 1442206057 is a prime.

It is a Duffinian number.

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 1442222441.

It is not an unprimeable number, because it can be changed into a prime (1442222447) 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 3 ways as a sum of consecutive naturals, for example, 65555555 + ... + 65555576.

It is an arithmetic number, because the mean of its divisors is an integer number (393333396).

Almost surely, 21442222441 is an apocalyptic number.

1442222441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1442222441 is a deficient number, since it is larger than the sum of its proper divisors (131111143).

1442222441 is a wasteful number, since it uses less digits than its factorization.

1442222441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131111142.

The product of its digits is 4096, while the sum is 26.

The square root of 1442222441 is about 37976.6038634315. The cubic root of 1442222441 is about 1129.8238796703.

It can be divided in two parts, 14422 and 22441, that added together give a palindrome (36863).

The spelling of 1442222441 in words is "one billion, four hundred forty-two million, two hundred twenty-two thousand, four hundred forty-one".

Divisors: 1 11 131111131 1442222441