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1442222213 = 4773341863
BaseRepresentation
bin101010111110110…
…1001000010000101
310201111210110221112
41111331221002011
510423202102323
6355035454405
750511454325
oct12575510205
93644713845
101442222213
11680107993
12342bb7405
1319ca42933
14d9783285
1586935178
hex55f69085

1442222213 has 8 divisors (see below), whose sum is σ = 1474952448. Its totient is φ = 1409577264.

The previous prime is 1442222147. The next prime is 1442222231. The reversal of 1442222213 is 3122222441.

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 1442222213 - 212 = 1442218117 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 (1442222263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13520 + ... + 55382.

It is an arithmetic number, because the mean of its divisors is an integer number (184369056).

Almost surely, 21442222213 is an apocalyptic number.

It is an amenable number.

1442222213 is a deficient number, since it is larger than the sum of its proper divisors (32730235).

1442222213 is an equidigital number, since it uses as much as digits as its factorization.

1442222213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42643.

The product of its digits is 1536, while the sum is 23.

The square root of 1442222213 is about 37976.6008615832. The cubic root of 1442222213 is about 1129.8238201326.

Adding to 1442222213 its reverse (3122222441), we get a palindrome (4564444654).

The spelling of 1442222213 in words is "one billion, four hundred forty-two million, two hundred twenty-two thousand, two hundred thirteen".

Divisors: 1 47 733 34451 41863 1967561 30685579 1442222213