Search a number
-
+
431422 = 21091979
BaseRepresentation
bin1101001010100111110
3210220210121
41221110332
5102301142
613125154
73444535
oct1512476
9726717
10431422
11275152
121897ba
131214a4
14b331c
1587c67
hex6953e

431422 has 8 divisors (see below), whose sum is σ = 653400. Its totient is φ = 213624.

The previous prime is 431399. The next prime is 431423. The reversal of 431422 is 224134.

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

It is a super-2 number, since 2×4314222 = 372249884168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431396 and 431405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431423) by changing a digit.

431422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (81675).

2431422 is an apocalyptic number.

431422 is a deficient number, since it is larger than the sum of its proper divisors (221978).

431422 is a wasteful number, since it uses less digits than its factorization.

431422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090.

The product of its digits is 192, while the sum is 16.

The square root of 431422 is about 656.8272223348. The cubic root of 431422 is about 75.5615333922.

Adding to 431422 its reverse (224134), we get a palindrome (655556).

The spelling of 431422 in words is "four hundred thirty-one thousand, four hundred twenty-two".

Divisors: 1 2 109 218 1979 3958 215711 431422