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1442431422 = 23326711693
BaseRepresentation
bin101010111111001…
…1100000110111110
310201112012002221000
41111332130012332
510423230301142
6355044151130
750513315265
oct12576340676
93645162830
101442431422
11680240093
123430984a6
1319cab6c23
14d97d95dc
158697714c
hex55f9c1be

1442431422 has 16 divisors (see below), whose sum is σ = 3205403280. Its totient is φ = 480810456.

The previous prime is 1442431387. The next prime is 1442431423. The reversal of 1442431422 is 2241342441.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442431423) 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 7 ways as a sum of consecutive naturals, for example, 13355793 + ... + 13355900.

It is an arithmetic number, because the mean of its divisors is an integer number (200337705).

Almost surely, 21442431422 is an apocalyptic number.

1442431422 is an abundant number, since it is smaller than the sum of its proper divisors (1762971858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1442431422 is a wasteful number, since it uses less digits than its factorization.

1442431422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26711704 (or 26711698 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 1442431422 is about 37979.3552077968. The cubic root of 1442431422 is about 1129.8784483032.

Adding to 1442431422 its reverse (2241342441), we get a palindrome (3683773863).

The spelling of 1442431422 in words is "one billion, four hundred forty-two million, four hundred thirty-one thousand, four hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 26711693 53423386 80135079 160270158 240405237 480810474 721215711 1442431422