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211312201 = 2360115287
BaseRepresentation
bin11001001100001…
…01111001001001
3112201121202211211
430212011321021
5413043442301
632545053121
75144060362
oct1446057111
9481552754
10211312201
11a9309a91
125a9271a1
1334a18209
14200c8b69
1513841051
hexc985e49

211312201 has 8 divisors (see below), whose sum is σ = 220881024. Its totient is φ = 201775200.

The previous prime is 211312181. The next prime is 211312223. The reversal of 211312201 is 102213112.

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

It is a cyclic number.

It is not a de Polignac number, because 211312201 - 221 = 209215049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211312501) by changing a digit.

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, 6180 + ... + 21466.

It is an arithmetic number, because the mean of its divisors is an integer number (27610128).

Almost surely, 2211312201 is an apocalyptic number.

It is an amenable number.

211312201 is a deficient number, since it is larger than the sum of its proper divisors (9568823).

211312201 is a wasteful number, since it uses less digits than its factorization.

211312201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15911.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 211312201 is about 14536.5814757115. The cubic root of 211312201 is about 595.6276605119.

Adding to 211312201 its reverse (102213112), we get a palindrome (313525313).

It can be divided in two parts, 21131 and 2201, that added together give a palindrome (23332).

The spelling of 211312201 in words is "two hundred eleven million, three hundred twelve thousand, two hundred one".

Divisors: 1 23 601 13823 15287 351601 9187487 211312201