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1440002342 = 21377277229
BaseRepresentation
bin101010111010100…
…1011000100100110
310201100121200212002
41111311023010212
510422120033332
6354520125302
750453550362
oct12565130446
93640550762
101440002342
11679931089
12342306832
1319c4463bc
14d93662a2
1586647562
hex55d4b126

1440002342 has 16 divisors (see below), whose sum is σ = 2179064160. Its totient is φ = 713663808.

The previous prime is 1440002341. The next prime is 1440002363. The reversal of 1440002342 is 2432000441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440002341) 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, 195584 + ... + 202812.

It is an arithmetic number, because the mean of its divisors is an integer number (136191510).

Almost surely, 21440002342 is an apocalyptic number.

1440002342 is a deficient number, since it is larger than the sum of its proper divisors (739061818).

1440002342 is a wasteful number, since it uses less digits than its factorization.

1440002342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8095.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1440002342 is about 37947.3627805675. The cubic root of 1440002342 is about 1129.2438468531.

Adding to 1440002342 its reverse (2432000441), we get a palindrome (3872002783).

The spelling of 1440002342 in words is "one billion, four hundred forty million, two thousand, three hundred forty-two".

Divisors: 1 2 137 274 727 1454 7229 14458 99599 199198 990373 1980746 5255483 10510966 720001171 1440002342