[go: up one dir, main page]

Search a number
-
+
634427 = 5910753
BaseRepresentation
bin10011010111000111011
31012020021022
42122320323
5130300202
621333055
75251433
oct2327073
91166238
10634427
113a3722
1226718b
13192a01
141272c3
15c7ea2
hex9ae3b

634427 has 4 divisors (see below), whose sum is σ = 645240. Its totient is φ = 623616.

The previous prime is 634421. The next prime is 634441. The reversal of 634427 is 724436.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 634427 - 216 = 568891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634396 and 634405.

It is not an unprimeable number, because it can be changed into a prime (634421) 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, 5318 + ... + 5435.

It is an arithmetic number, because the mean of its divisors is an integer number (161310).

2634427 is an apocalyptic number.

634427 is a deficient number, since it is larger than the sum of its proper divisors (10813).

634427 is a wasteful number, since it uses less digits than its factorization.

634427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10812.

The product of its digits is 4032, while the sum is 26.

The square root of 634427 is about 796.5092592054. The cubic root of 634427 is about 85.9265191700.

Subtracting 634427 from its reverse (724436), we obtain a palindrome (90009).

The spelling of 634427 in words is "six hundred thirty-four thousand, four hundred twenty-seven".

Divisors: 1 59 10753 634427