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233131201 = 389599309
BaseRepresentation
bin11011110010101…
…00110011000001
3121020200021212221
431321110303001
5434140144301
635044451041
75530403542
oct1571246301
9536607787
10233131201
1110a661a16
12660a9a81
13393b7574
1422d684c9
1515700da1
hexde54cc1

233131201 has 4 divisors (see below), whose sum is σ = 233730900. Its totient is φ = 232531504.

The previous prime is 233131193. The next prime is 233131237. The reversal of 233131201 is 102131332.

233131201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21864976 + 211266225 = 4676^2 + 14535^2 .

It is a cyclic number.

It is not a de Polignac number, because 233131201 - 23 = 233131193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233131601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299266 + ... + 300043.

It is an arithmetic number, because the mean of its divisors is an integer number (58432725).

Almost surely, 2233131201 is an apocalyptic number.

It is an amenable number.

233131201 is a deficient number, since it is larger than the sum of its proper divisors (599699).

233131201 is an equidigital number, since it uses as much as digits as its factorization.

233131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599698.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 233131201 is about 15268.6345492975. The cubic root of 233131201 is about 615.4604267968.

Adding to 233131201 its reverse (102131332), we get a palindrome (335262533).

It can be divided in two parts, 233131 and 201, that added together give a palindrome (233332).

The spelling of 233131201 in words is "two hundred thirty-three million, one hundred thirty-one thousand, two hundred one".

Divisors: 1 389 599309 233131201