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201232113 = 31311513391
BaseRepresentation
bin10111111111010…
…00111011110001
3112000122122120020
423333220323301
5403003411423
631545034053
74662305355
oct1377507361
9460578506
10201232113
11a3654735
1257485929
13328c9074
141ca23465
15129ee4e3
hexbfe8ef1

201232113 has 16 divisors (see below), whose sum is σ = 272228352. Its totient is φ = 132210000.

The previous prime is 201232103. The next prime is 201232121. The reversal of 201232113 is 311232102.

It is not a de Polignac number, because 201232113 - 213 = 201223921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201232092 and 201232101.

It is not an unprimeable number, because it can be changed into a prime (201232103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57648 + ... + 61038.

It is an arithmetic number, because the mean of its divisors is an integer number (17014272).

Almost surely, 2201232113 is an apocalyptic number.

It is an amenable number.

201232113 is a deficient number, since it is larger than the sum of its proper divisors (70996239).

201232113 is a wasteful number, since it uses less digits than its factorization.

201232113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 201232113 is about 14185.6305111898. The cubic root of 201232113 is about 586.0019967161.

Adding to 201232113 its reverse (311232102), we get a palindrome (512464215).

The spelling of 201232113 in words is "two hundred one million, two hundred thirty-two thousand, one hundred thirteen".

Divisors: 1 3 131 151 393 453 3391 10173 19781 59343 444221 512041 1332663 1536123 67077371 201232113