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201211413 = 31334914783
BaseRepresentation
bin10111111111000…
…11111000010101
3112000121121011120
423333203320111
5403002231123
631544354153
74662161124
oct1377437025
9460547146
10201211413
11a3640127
1257475959
13328bc810
141ca19abb
15129e82e3
hexbfe3e15

201211413 has 16 divisors (see below), whose sum is σ = 289766400. Its totient is φ = 123459264.

The previous prime is 201211411. The next prime is 201211447. The reversal of 201211413 is 314112102.

It is not a de Polignac number, because 201211413 - 21 = 201211411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201211392 and 201211401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6220 + ... + 21002.

It is an arithmetic number, because the mean of its divisors is an integer number (18110400).

Almost surely, 2201211413 is an apocalyptic number.

It is an amenable number.

201211413 is a deficient number, since it is larger than the sum of its proper divisors (88554987).

201211413 is a wasteful number, since it uses less digits than its factorization.

201211413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15148.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 201211413 is about 14184.9008808662. The cubic root of 201211413 is about 585.9819027442.

Adding to 201211413 its reverse (314112102), we get a palindrome (515323515).

The spelling of 201211413 in words is "two hundred one million, two hundred eleven thousand, four hundred thirteen".

Divisors: 1 3 13 39 349 1047 4537 13611 14783 44349 192179 576537 5159267 15477801 67070471 201211413