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1444312222 = 25313625587
BaseRepresentation
bin101011000010110…
…0111010010011110
310201122201122220021
41112011213102132
510424220442342
6355152342354
750535310543
oct12605472236
93648648807
101444312222
11681305171
123438449ba
131a02c5022
14d9b68bca
1586be9567
hex5616749e

1444312222 has 8 divisors (see below), whose sum is σ = 2207345256. Its totient is φ = 708530472.

The previous prime is 1444312213. The next prime is 1444312223. The reversal of 1444312222 is 2222134441.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444312223) 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, 6812688 + ... + 6812899.

It is an arithmetic number, because the mean of its divisors is an integer number (275918157).

Almost surely, 21444312222 is an apocalyptic number.

1444312222 is a deficient number, since it is larger than the sum of its proper divisors (763033034).

1444312222 is a wasteful number, since it uses less digits than its factorization.

1444312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13625642.

The product of its digits is 3072, while the sum is 25.

The square root of 1444312222 is about 38004.1079621664. The cubic root of 1444312222 is about 1130.3693214189.

Adding to 1444312222 its reverse (2222134441), we get a palindrome (3666446663).

The spelling of 1444312222 in words is "one billion, four hundred forty-four million, three hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 53 106 13625587 27251174 722156111 1444312222