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830901 = 31032689
BaseRepresentation
bin11001010110110110101
31120012210010
43022312311
5203042101
625450433
710030311
oct3126665
91505703
10830901
115182a5
12340a19
13231276
14178b41
151162d6
hexcadb5

830901 has 8 divisors (see below), whose sum is σ = 1119040. Its totient is φ = 548352.

The previous prime is 830899. The next prime is 830911. The reversal of 830901 is 109038.

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

It is not a de Polignac number, because 830901 - 21 = 830899 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036 + ... + 1653.

It is an arithmetic number, because the mean of its divisors is an integer number (139880).

2830901 is an apocalyptic number.

It is an amenable number.

830901 is a deficient number, since it is larger than the sum of its proper divisors (288139).

830901 is a wasteful number, since it uses less digits than its factorization.

830901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 830901 is about 911.5377117816. The cubic root of 830901 is about 94.0119571329.

Adding to 830901 its reverse (109038), we get a palindrome (939939).

The spelling of 830901 in words is "eight hundred thirty thousand, nine hundred one".

Divisors: 1 3 103 309 2689 8067 276967 830901