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231252303 = 3531454417
BaseRepresentation
bin11011100100010…
…10000101001111
3121010010211112010
431302022011033
5433200033203
634540312303
75505416652
oct1562120517
9533124463
10231252303
11109599307
1265542693
1338baa2a9
14229d9899
151547e303
hexdc8a14f

231252303 has 8 divisors (see below), whose sum is σ = 314154288. Its totient is φ = 151259264.

The previous prime is 231252299. The next prime is 231252311. The reversal of 231252303 is 303252132.

231252303 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 not a de Polignac number, because 231252303 - 22 = 231252299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231252303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231251303) 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, 727050 + ... + 727367.

It is an arithmetic number, because the mean of its divisors is an integer number (39269286).

Almost surely, 2231252303 is an apocalyptic number.

231252303 is a deficient number, since it is larger than the sum of its proper divisors (82901985).

231252303 is a wasteful number, since it uses less digits than its factorization.

231252303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454473.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 231252303 is about 15206.9820477306. The cubic root of 231252303 is about 613.8025506858.

It can be divided in two parts, 2312 and 52303, that added together give a triangular number (54615 = T330).

The spelling of 231252303 in words is "two hundred thirty-one million, two hundred fifty-two thousand, three hundred three".

Divisors: 1 3 53 159 1454417 4363251 77084101 231252303