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230642201 = 3137211953
BaseRepresentation
bin11011011111101…
…01001000011001
3121001222211121202
431233311020121
5433021022301
634515243545
75500266146
oct1557651031
9531884552
10230642201
11109211999
12652a95b5
1338a2569a
14228bb3cd
15153ad66b
hexdbf5219

230642201 has 16 divisors (see below), whose sum is σ = 245933568. Its totient is φ = 215913600.

The previous prime is 230642177. The next prime is 230642219. The reversal of 230642201 is 102246032.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230642201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230642221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241541 + ... + 242493.

It is an arithmetic number, because the mean of its divisors is an integer number (15370848).

Almost surely, 2230642201 is an apocalyptic number.

It is an amenable number.

230642201 is a deficient number, since it is larger than the sum of its proper divisors (15291367).

230642201 is a wasteful number, since it uses less digits than its factorization.

230642201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 230642201 is about 15186.9088691544. The cubic root of 230642201 is about 613.2622865549.

Adding to 230642201 its reverse (102246032), we get a palindrome (332888233).

The spelling of 230642201 in words is "two hundred thirty million, six hundred forty-two thousand, two hundred one".

Divisors: 1 31 37 211 953 1147 6541 7807 29543 35261 201083 242017 1093091 6233573 7440071 230642201