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1349381 = 11612011
BaseRepresentation
bin101001001011100000101
32112120000002
411021130011
5321140011
644531045
714320025
oct5113405
92476002
101349381
118418a0
12550a85
13383267
14271a85
151b9c3b
hex149705

1349381 has 8 divisors (see below), whose sum is σ = 1496928. Its totient is φ = 1206000.

The previous prime is 1349371. The next prime is 1349393. The reversal of 1349381 is 1839431.

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 1349381 - 26 = 1349317 is a prime.

It is a super-2 number, since 2×13493812 = 3641658166322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335 + ... + 1676.

It is an arithmetic number, because the mean of its divisors is an integer number (187116).

21349381 is an apocalyptic number.

1349381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1349381 is the 671-st octagonal number.

It is an amenable number.

1349381 is a deficient number, since it is larger than the sum of its proper divisors (147547).

1349381 is a wasteful number, since it uses less digits than its factorization.

1349381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083.

The product of its digits is 2592, while the sum is 29.

The square root of 1349381 is about 1161.6285981328. The cubic root of 1349381 is about 110.5040504101.

It can be divided in two parts, 13 and 49381, that added together give a palindrome (49394).

The spelling of 1349381 in words is "one million, three hundred forty-nine thousand, three hundred eighty-one".

Divisors: 1 11 61 671 2011 22121 122671 1349381