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1440034241 = 2927491983
BaseRepresentation
bin101010111010101…
…0010110111000001
310201100200022121112
41111311102313001
510422122043431
6354520533105
750454042362
oct12565226701
93640608545
101440034241
11679953048
12342321195
1319c457a89
14d9373b69
1586651c2b
hex55d52dc1

1440034241 has 4 divisors (see below), whose sum is σ = 1440529152. Its totient is φ = 1439539332.

The previous prime is 1440034229. The next prime is 1440034243. The reversal of 1440034241 is 1424300441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1424300441 = 2273626617.

It is a cyclic number.

It is not a de Polignac number, because 1440034241 - 26 = 1440034177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1440034243) 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, 243065 + ... + 248918.

It is an arithmetic number, because the mean of its divisors is an integer number (360132288).

Almost surely, 21440034241 is an apocalyptic number.

It is an amenable number.

1440034241 is a deficient number, since it is larger than the sum of its proper divisors (494911).

1440034241 is an equidigital number, since it uses as much as digits as its factorization.

1440034241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494910.

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

The square root of 1440034241 is about 37947.7830841276. The cubic root of 1440034241 is about 1129.2521851459.

Adding to 1440034241 its reverse (1424300441), we get a palindrome (2864334682).

The spelling of 1440034241 in words is "one billion, four hundred forty million, thirty-four thousand, two hundred forty-one".

Divisors: 1 2927 491983 1440034241