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1440130112 = 26171323649
BaseRepresentation
bin101010111010110…
…1010010001000000
310201100212012010022
41111311222101000
510422133130422
6354522553012
750454622031
oct12565522100
93640765108
101440130112
11679a09083
12342368768
1319c48c5c5
14d939aa88
1586670342
hex55d6a440

1440130112 has 28 divisors (see below), whose sum is σ = 3025863900. Its totient is φ = 677707776.

The previous prime is 1440130103. The next prime is 1440130121. The reversal of 1440130112 is 2110310441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1440130103) and next prime (1440130121).

It can be written as a sum of positive squares in 2 ways, for example, as 391406656 + 1048723456 = 19784^2 + 32384^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660737 + ... + 662912.

Almost surely, 21440130112 is an apocalyptic number.

It is an amenable number.

1440130112 is an abundant number, since it is smaller than the sum of its proper divisors (1585733788).

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

1440130112 is a wasteful number, since it uses less digits than its factorization.

1440130112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323678 (or 1323668 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1440130112 is about 37949.0462594253. The cubic root of 1440130112 is about 1129.2772447662.

Adding to 1440130112 its reverse (2110310441), we get a palindrome (3550440553).

The spelling of 1440130112 in words is "one billion, four hundred forty million, one hundred thirty thousand, one hundred twelve".

Divisors: 1 2 4 8 16 17 32 34 64 68 136 272 544 1088 1323649 2647298 5294596 10589192 21178384 22502033 42356768 45004066 84713536 90008132 180016264 360032528 720065056 1440130112