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201201 = 37111367
BaseRepresentation
bin110001000111110001
3101012222220
4301013301
522414301
64151253
71465410
oct610761
9335886
10201201
11128190
1298529
1370770
1453477
153e936
hex311f1

201201 has 32 divisors (see below), whose sum is σ = 365568. Its totient is φ = 95040.

The previous prime is 201193. The next prime is 201203. The reversal of 201201 is 102102.

Adding to 201201 its reverse (102102), we get a palindrome (303303).

Subtracting from 201201 its reverse (102102), we obtain a palindrome (99099).

It can be divided in two parts, 20 and 1201, that added together give a palindrome (1221).

It is a happy number.

201201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201201 - 23 = 201193 is a prime.

It is a Curzon number.

201201 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 201201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2970 + ... + 3036.

It is an arithmetic number, because the mean of its divisors is an integer number (11424).

2201201 is an apocalyptic number.

201201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201201 is a deficient number, since it is larger than the sum of its proper divisors (164367).

201201 is a wasteful number, since it uses less digits than its factorization.

201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 201201 is about 448.5543445336. The cubic root of 201201 is about 58.5971794082.

The spelling of 201201 in words is "two hundred one thousand, two hundred one", and thus it is an iban number.

Divisors: 1 3 7 11 13 21 33 39 67 77 91 143 201 231 273 429 469 737 871 1001 1407 2211 2613 3003 5159 6097 9581 15477 18291 28743 67067 201201