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230207811 = 3659116443
BaseRepresentation
bin11011011100010…
…11000101000011
3121001011202202020
431232023011003
5432413122221
634502052523
75463506541
oct1556130503
9531152666
10230207811
11108a45599
126511a143
1338902a52
1422806d91
1515324ac6
hexdb8b143

230207811 has 8 divisors (see below), whose sum is σ = 307412160. Its totient is φ = 153237672.

The previous prime is 230207801. The next prime is 230207843. The reversal of 230207811 is 118702032.

230207811 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 not a de Polignac number, because 230207811 - 27 = 230207683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230207801) 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, 56245 + ... + 60198.

It is an arithmetic number, because the mean of its divisors is an integer number (38426520).

Almost surely, 2230207811 is an apocalyptic number.

230207811 is a deficient number, since it is larger than the sum of its proper divisors (77204349).

230207811 is a wasteful number, since it uses less digits than its factorization.

230207811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117105.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 230207811 is about 15172.6006669918. The cubic root of 230207811 is about 612.8770398815.

Adding to 230207811 its reverse (118702032), we get a palindrome (348909843).

The spelling of 230207811 in words is "two hundred thirty million, two hundred seven thousand, eight hundred eleven".

Divisors: 1 3 659 1977 116443 349329 76735937 230207811