Search a number
-
+
835481 = 3126951
BaseRepresentation
bin11001011111110011001
31120110001202
43023332121
5203213411
625523545
710046543
oct3137631
91513052
10835481
11520789
123435b5
1323338a
1417a693
1511783b
hexcbf99

835481 has 4 divisors (see below), whose sum is σ = 862464. Its totient is φ = 808500.

The previous prime is 835469. The next prime is 835489. The reversal of 835481 is 184538.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184538 = 292269.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-835481 is a prime.

It is a super-2 number, since 2×8354812 = 1396057002722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (835489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13445 + ... + 13506.

It is an arithmetic number, because the mean of its divisors is an integer number (215616).

2835481 is an apocalyptic number.

It is an amenable number.

835481 is a deficient number, since it is larger than the sum of its proper divisors (26983).

835481 is a wasteful number, since it uses less digits than its factorization.

835481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26982.

The product of its digits is 3840, while the sum is 29.

The square root of 835481 is about 914.0464977232. The cubic root of 835481 is about 94.1843748078.

The spelling of 835481 in words is "eight hundred thirty-five thousand, four hundred eighty-one".

Divisors: 1 31 26951 835481