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231303413 = 11197106739
BaseRepresentation
bin11011100100101…
…10100011110101
3121010020102122002
431302112203311
5433203202123
634541345045
75506021655
oct1562264365
9533212562
10231303413
11109623750
1265568185
1338bc7633
1422a10365
151548e528
hexdc968f5

231303413 has 8 divisors (see below), whose sum is σ = 253614240. Its totient is φ = 209206480.

The previous prime is 231303383. The next prime is 231303419. The reversal of 231303413 is 314303132.

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

It is a cyclic number.

It is not a de Polignac number, because 231303413 - 214 = 231287029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231303419) 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, 51203 + ... + 55536.

It is an arithmetic number, because the mean of its divisors is an integer number (31701780).

Almost surely, 2231303413 is an apocalyptic number.

It is an amenable number.

231303413 is a deficient number, since it is larger than the sum of its proper divisors (22310827).

231303413 is a wasteful number, since it uses less digits than its factorization.

231303413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106947.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 231303413 is about 15208.6624329689. The cubic root of 231303413 is about 613.8477670103.

Adding to 231303413 its reverse (314303132), we get a palindrome (545606545).

The spelling of 231303413 in words is "two hundred thirty-one million, three hundred three thousand, four hundred thirteen".

Divisors: 1 11 197 2167 106739 1174129 21027583 231303413