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431201 = 2914869
BaseRepresentation
bin1101001010001100001
3210220111102
41221101201
5102244301
613124145
73444101
oct1512141
9726442
10431201
11274a71
12189655
13121364
14b3201
1587b6b
hex69461

431201 has 4 divisors (see below), whose sum is σ = 446100. Its totient is φ = 416304.

The previous prime is 431191. The next prime is 431203. The reversal of 431201 is 102134.

It is a happy number.

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 160801 + 270400 = 401^2 + 520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-431201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431203) 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, 7406 + ... + 7463.

It is an arithmetic number, because the mean of its divisors is an integer number (111525).

2431201 is an apocalyptic number.

It is an amenable number.

431201 is a deficient number, since it is larger than the sum of its proper divisors (14899).

431201 is a wasteful number, since it uses less digits than its factorization.

431201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14898.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 431201 is about 656.6589678060. The cubic root of 431201 is about 75.5486288184.

Adding to 431201 its reverse (102134), we get a palindrome (533335).

The spelling of 431201 in words is "four hundred thirty-one thousand, two hundred one".

Divisors: 1 29 14869 431201