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231024201 = 377008067
BaseRepresentation
bin11011100010100…
…10011001001001
3121002201020121220
431301102121021
5433120233301
634531352253
75503446642
oct1561223111
9532636556
10231024201
111094529a1
1265452689
1338b2a515
142297a6c9
1515436936
hexdc52649

231024201 has 4 divisors (see below), whose sum is σ = 308032272. Its totient is φ = 154016132.

The previous prime is 231024193. The next prime is 231024229. The reversal of 231024201 is 102420132.

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.

It is a cyclic number.

It is not a de Polignac number, because 231024201 - 23 = 231024193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231024901) 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, 38504031 + ... + 38504036.

It is an arithmetic number, because the mean of its divisors is an integer number (77008068).

Almost surely, 2231024201 is an apocalyptic number.

It is an amenable number.

231024201 is a deficient number, since it is larger than the sum of its proper divisors (77008071).

231024201 is an equidigital number, since it uses as much as digits as its factorization.

231024201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77008070.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 231024201 is about 15199.4802871677. The cubic root of 231024201 is about 613.6006706801.

Adding to 231024201 its reverse (102420132), we get a palindrome (333444333).

The spelling of 231024201 in words is "two hundred thirty-one million, twenty-four thousand, two hundred one".

Divisors: 1 3 77008067 231024201