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230275081 = 1771190783
BaseRepresentation
bin11011011100110…
…11100000001001
3121001022012000201
431232123200021
5432422300311
634503332201
75464206631
oct1556334011
9531265021
10230275081
11108a91093
1265151061
133892755a
14228236c1
15153399c1
hexdb9b809

230275081 has 8 divisors (see below), whose sum is σ = 247256064. Its totient is φ = 213675840.

The previous prime is 230275063. The next prime is 230275093. The reversal of 230275081 is 180572032.

230275081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230275081 is a prime.

It is a super-2 number, since 2×2302750812 = 106053225859113122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230270081) 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, 94185 + ... + 96598.

It is an arithmetic number, because the mean of its divisors is an integer number (30907008).

Almost surely, 2230275081 is an apocalyptic number.

It is an amenable number.

230275081 is a deficient number, since it is larger than the sum of its proper divisors (16980983).

230275081 is a wasteful number, since it uses less digits than its factorization.

230275081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190871.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 230275081 is about 15174.8173300373. The cubic root of 230275081 is about 612.9367312000.

The spelling of 230275081 in words is "two hundred thirty million, two hundred seventy-five thousand, eighty-one".

Divisors: 1 17 71 1207 190783 3243311 13545593 230275081