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231248417 = 2324141719
BaseRepresentation
bin11011100100010…
…01001000100001
3121010010122012012
431302021020201
5433144422132
634540242305
75505402431
oct1562111041
9533118165
10231248417
111095963a4
1265540395
1338ba85aa
14229d82c1
151547d0b2
hexdc89221

231248417 has 8 divisors (see below), whose sum is σ = 242309760. Its totient is φ = 220271040.

The previous prime is 231248393. The next prime is 231248419. The reversal of 231248417 is 714842132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-231248417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231248419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15317 + ... + 26402.

It is an arithmetic number, because the mean of its divisors is an integer number (30288720).

Almost surely, 2231248417 is an apocalyptic number.

It is an amenable number.

231248417 is a deficient number, since it is larger than the sum of its proper divisors (11061343).

231248417 is a wasteful number, since it uses less digits than its factorization.

231248417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41983.

The product of its digits is 10752, while the sum is 32.

The square root of 231248417 is about 15206.8542769371. The cubic root of 231248417 is about 613.7991125218.

The spelling of 231248417 in words is "two hundred thirty-one million, two hundred forty-eight thousand, four hundred seventeen".

Divisors: 1 23 241 5543 41719 959537 10054279 231248417