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1381741 = 4167503
BaseRepresentation
bin101010001010101101101
32121012101121
411101111231
5323203431
645340541
714513254
oct5212555
92535347
101381741
11864139
12567751
13394bca
1427d79b
151c4611
hex15156d

1381741 has 8 divisors (see below), whose sum is σ = 1439424. Its totient is φ = 1325280.

The previous prime is 1381739. The next prime is 1381747. The reversal of 1381741 is 1471831.

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

It is a cyclic number.

It is not a de Polignac number, because 1381741 - 21 = 1381739 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381747) 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 7 ways as a sum of consecutive naturals, for example, 2496 + ... + 2998.

It is an arithmetic number, because the mean of its divisors is an integer number (179928).

21381741 is an apocalyptic number.

It is an amenable number.

1381741 is a deficient number, since it is larger than the sum of its proper divisors (57683).

1381741 is an equidigital number, since it uses as much as digits as its factorization.

1381741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611.

The product of its digits is 672, while the sum is 25.

The square root of 1381741 is about 1175.4747976882. The cubic root of 1381741 is about 111.3804277635.

The spelling of 1381741 in words is "one million, three hundred eighty-one thousand, seven hundred forty-one".

Divisors: 1 41 67 503 2747 20623 33701 1381741