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201201201 = 3267333667
BaseRepresentation
bin10111111111000…
…01011000110001
3112000121002011100
423333201120301
5403001414301
631544235013
74662116265
oct1377413061
9460532140
10201201201
11a3633493
125746ba69
13328b7c86
141ca160a5
15129e5286
hexbfe1631

201201201 has 12 divisors (see below), whose sum is σ = 294962512. Its totient is φ = 132131736.

The previous prime is 201201193. The next prime is 201201251. The reversal of 201201201 is 102102102.

It is not a de Polignac number, because 201201201 - 23 = 201201193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

201201201 is a modest number, since divided by 201201 gives 201 as remainder.

It is not an unprimeable number, because it can be changed into a prime (201201251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166231 + ... + 167436.

Almost surely, 2201201201 is an apocalyptic number.

It is an amenable number.

201201201 is a deficient number, since it is larger than the sum of its proper divisors (93761311).

201201201 is a wasteful number, since it uses less digits than its factorization.

201201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333740 (or 333737 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 201201201 is about 14184.5409160818. The cubic root of 201201201 is about 585.9719892104.

Adding to 201201201 its reverse (102102102), we get a palindrome (303303303).

Subtracting from 201201201 its reverse (102102102), we obtain a palindrome (99099099).

It can be divided in two parts, 20120 and 1201, that added together give a triangular number (21321 = T206).

The spelling of 201201201 in words is "two hundred one million, two hundred one thousand, two hundred one".

Divisors: 1 3 9 67 201 603 333667 1001001 3003003 22355689 67067067 201201201