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1380004244 = 22379324353
BaseRepresentation
bin101001001000001…
…0011000110010100
310120011201110221022
41102100103012110
510311240113434
6344534140312
746124561663
oct12220230624
93504643838
101380004244
11648a81683
123261b1698
1318cb9a278
14d13c8dda
158124522e
hex52413194

1380004244 has 12 divisors (see below), whose sum is σ = 2480278164. Its totient is φ = 671353344.

The previous prime is 1380004243. The next prime is 1380004253. The reversal of 1380004244 is 4424000831.

It can be written as a sum of positive squares in 2 ways, for example, as 554131600 + 825872644 = 23540^2 + 28738^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380004243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4662029 + ... + 4662324.

It is an arithmetic number, because the mean of its divisors is an integer number (206689847).

Almost surely, 21380004244 is an apocalyptic number.

It is an amenable number.

1380004244 is a deficient number, since it is larger than the sum of its proper divisors (1100273920).

1380004244 is a wasteful number, since it uses less digits than its factorization.

1380004244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324394 (or 9324392 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 1380004244 is about 37148.4083642893. The cubic root of 1380004244 is about 1113.3374228239.

The spelling of 1380004244 in words is "one billion, three hundred eighty million, four thousand, two hundred forty-four".

Divisors: 1 2 4 37 74 148 9324353 18648706 37297412 345001061 690002122 1380004244