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13822138 = 211718849
BaseRepresentation
bin110100101110…
…100010111010
3222000020102001
4310232202322
512014302023
61212131214
7225325531
oct64564272
928006361
1013822138
117890860
124766b0a
132b2c4a5
141b9b318
1513306ad
hexd2e8ba

13822138 has 16 divisors (see below), whose sum is σ = 22939200. Its totient is φ = 6193600.

The previous prime is 13822099. The next prime is 13822147. The reversal of 13822138 is 83122831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2863 + ... + 5986.

It is an arithmetic number, because the mean of its divisors is an integer number (1433700).

Almost surely, 213822138 is an apocalyptic number.

13822138 is a deficient number, since it is larger than the sum of its proper divisors (9117062).

13822138 is a wasteful number, since it uses less digits than its factorization.

13822138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8933.

The product of its digits is 2304, while the sum is 28.

The square root of 13822138 is about 3717.8136047952. The cubic root of 13822138 is about 239.9892240532.

Adding to 13822138 its reverse (83122831), we get a palindrome (96944969).

The spelling of 13822138 in words is "thirteen million, eight hundred twenty-two thousand, one hundred thirty-eight".

Divisors: 1 2 11 22 71 142 781 1562 8849 17698 97339 194678 628279 1256558 6911069 13822138