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12010838 = 273972161
BaseRepresentation
bin101101110100…
…010101010110
3211121012202212
4231310111112
511033321323
61105233422
7204043010
oct55642526
924535685
1012010838
116863a14
124032872
132646c08
1418491b0
1510c3b78
hexb74556

12010838 has 16 divisors (see below), whose sum is σ = 20651424. Its totient is φ = 5132160.

The previous prime is 12010799. The next prime is 12010841. The reversal of 12010838 is 83801021.

It is a Curzon number.

It is a congruent number.

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, 4478 + ... + 6638.

It is an arithmetic number, because the mean of its divisors is an integer number (1290714).

Almost surely, 212010838 is an apocalyptic number.

12010838 is a deficient number, since it is larger than the sum of its proper divisors (8640586).

12010838 is a wasteful number, since it uses less digits than its factorization.

12010838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 12010838 is about 3465.6655926387. The cubic root of 12010838 is about 229.0117522874.

Adding to 12010838 its reverse (83801021), we get a palindrome (95811859).

The spelling of 12010838 in words is "twelve million, ten thousand, eight hundred thirty-eight".

Divisors: 1 2 7 14 397 794 2161 2779 4322 5558 15127 30254 857917 1715834 6005419 12010838