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1381294 = 25991153
BaseRepresentation
bin101010001001110101110
32121011210001
411101032232
5323200134
645334514
714512045
oct5211656
92534701
101381294
11863872
1256743a
13394945
1427d55c
151c4414
hex1513ae

1381294 has 8 divisors (see below), whose sum is σ = 2077200. Its totient is φ = 688896.

The previous prime is 1381291. The next prime is 1381297. The reversal of 1381294 is 4921831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1381291) and next prime (1381297).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13812942 = 3815946228872, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381291) 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, 622 + ... + 1774.

It is an arithmetic number, because the mean of its divisors is an integer number (259650).

21381294 is an apocalyptic number.

1381294 is a deficient number, since it is larger than the sum of its proper divisors (695906).

1381294 is a wasteful number, since it uses less digits than its factorization.

1381294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754.

The product of its digits is 1728, while the sum is 28.

The square root of 1381294 is about 1175.2846463730. The cubic root of 1381294 is about 111.3684157630.

The spelling of 1381294 in words is "one million, three hundred eighty-one thousand, two hundred ninety-four".

Divisors: 1 2 599 1153 1198 2306 690647 1381294