Search a number
-
+
234431401 = 495747293
BaseRepresentation
bin11011111100100…
…10001110101001
3121100010100102111
431332102032221
5440003301101
635132402321
75544430321
oct1576221651
9540110374
10234431401
1111036a866
12666163a1
1339751309
14231c6281
15158ab251
hexdf923a9

234431401 has 4 divisors (see below), whose sum is σ = 234483652. Its totient is φ = 234379152.

The previous prime is 234431369. The next prime is 234431413. The reversal of 234431401 is 104134432.

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 166797225 + 67634176 = 12915^2 + 8224^2 .

It is a cyclic number.

It is not a de Polignac number, because 234431401 - 25 = 234431369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234431501) 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, 18690 + ... + 28603.

It is an arithmetic number, because the mean of its divisors is an integer number (58620913).

Almost surely, 2234431401 is an apocalyptic number.

It is an amenable number.

234431401 is a deficient number, since it is larger than the sum of its proper divisors (52251).

234431401 is an equidigital number, since it uses as much as digits as its factorization.

234431401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52250.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 234431401 is about 15311.1528305350. The cubic root of 234431401 is about 616.6024712657.

Adding to 234431401 its reverse (104134432), we get a palindrome (338565833).

The spelling of 234431401 in words is "two hundred thirty-four million, four hundred thirty-one thousand, four hundred one".

Divisors: 1 4957 47293 234431401