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231252873 = 3292658079
BaseRepresentation
bin11011100100010…
…10001110001001
3121010010212022020
431302022032021
5433200042443
634540315053
75505421425
oct1562121611
9533125266
10231252873
11109599785
1265542a89
1338baa627
14229d9b85
151547e583
hexdc8a389

231252873 has 8 divisors (see below), whose sum is σ = 318969600. Its totient is φ = 148852368.

The previous prime is 231252871. The next prime is 231252881. The reversal of 231252873 is 378252132.

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

It is not a de Polignac number, because 231252873 - 21 = 231252871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231252871) 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 7 ways as a sum of consecutive naturals, for example, 1328953 + ... + 1329126.

It is an arithmetic number, because the mean of its divisors is an integer number (39871200).

Almost surely, 2231252873 is an apocalyptic number.

It is an amenable number.

231252873 is a deficient number, since it is larger than the sum of its proper divisors (87716727).

231252873 is a wasteful number, since it uses less digits than its factorization.

231252873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658111.

The product of its digits is 20160, while the sum is 33.

The square root of 231252873 is about 15207.0007891103. Note that the first 3 decimals coincide. The cubic root of 231252873 is about 613.8030549938.

The spelling of 231252873 in words is "two hundred thirty-one million, two hundred fifty-two thousand, eight hundred seventy-three".

Divisors: 1 3 29 87 2658079 7974237 77084291 231252873