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201231411 = 3130351479
BaseRepresentation
bin10111111111010…
…00110000110011
3112000122121121020
423333220300303
5403003401121
631545030523
74662303333
oct1377506063
9460577536
10201231411
11a3654157
1257485443
13328c8954
141ca230c3
15129ee1c6
hexbfe8c33

201231411 has 8 divisors (see below), whose sum is σ = 268519680. Its totient is φ = 134048712.

The previous prime is 201231391. The next prime is 201231427. The reversal of 201231411 is 114132102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201231411 - 25 = 201231379 is a prime.

It is a super-3 number, since 3×2012314113 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (201231211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21831 + ... + 29648.

It is an arithmetic number, because the mean of its divisors is an integer number (33564960).

Almost surely, 2201231411 is an apocalyptic number.

201231411 is a deficient number, since it is larger than the sum of its proper divisors (67288269).

201231411 is a wasteful number, since it uses less digits than its factorization.

201231411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52785.

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

The square root of 201231411 is about 14185.6057678197. The cubic root of 201231411 is about 586.0013152910.

Adding to 201231411 its reverse (114132102), we get a palindrome (315363513).

The spelling of 201231411 in words is "two hundred one million, two hundred thirty-one thousand, four hundred eleven".

Divisors: 1 3 1303 3909 51479 154437 67077137 201231411