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230835133 = 929248477
BaseRepresentation
bin11011100001001…
…00001110111101
3121002100122021101
431300210032331
5433043211013
634523333101
75502031504
oct1560441675
9532318241
10230835133
11109333941
1265381191
1338a92449
142292b83b
15153ea8dd
hexdc243bd

230835133 has 4 divisors (see below), whose sum is σ = 231084540. Its totient is φ = 230585728.

The previous prime is 230835103. The next prime is 230835139. The reversal of 230835133 is 331538032.

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 91642329 + 139192804 = 9573^2 + 11798^2 .

It is a cyclic number.

It is not a de Polignac number, because 230835133 - 213 = 230826941 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 (230835139) 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, 123310 + ... + 125167.

It is an arithmetic number, because the mean of its divisors is an integer number (57771135).

Almost surely, 2230835133 is an apocalyptic number.

It is an amenable number.

230835133 is a deficient number, since it is larger than the sum of its proper divisors (249407).

230835133 is an equidigital number, since it uses as much as digits as its factorization.

230835133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249406.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 230835133 is about 15193.2594593787. The cubic root of 230835133 is about 613.4332366865.

The spelling of 230835133 in words is "two hundred thirty million, eight hundred thirty-five thousand, one hundred thirty-three".

Divisors: 1 929 248477 230835133