Search a number
-
+
201202331 = 1159310019
BaseRepresentation
bin10111111111000…
…01101010011011
3112000121010201012
423333201222123
5403001433311
631544244135
74662122501
oct1377415233
9460533635
10201202331
11a3634320
125747064b
13328b8645
141ca16671
15129e578b
hexbfe1a9b

201202331 has 8 divisors (see below), whose sum is σ = 223214400. Its totient is φ = 179810440.

The previous prime is 201202301. The next prime is 201202349. The reversal of 201202331 is 133202102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-201202331 is a prime.

It is a super-2 number, since 2×2012023312 = 80964755999667122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201202301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154361 + ... + 155658.

It is an arithmetic number, because the mean of its divisors is an integer number (27901800).

Almost surely, 2201202331 is an apocalyptic number.

201202331 is a deficient number, since it is larger than the sum of its proper divisors (22012069).

201202331 is a wasteful number, since it uses less digits than its factorization.

201202331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310089.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 201202331 is about 14184.5807481222. The cubic root of 201202331 is about 585.9730862004.

Adding to 201202331 its reverse (133202102), we get a palindrome (334404433).

The spelling of 201202331 in words is "two hundred one million, two hundred two thousand, three hundred thirty-one".

Divisors: 1 11 59 649 310019 3410209 18291121 201202331