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248417 = 1397197
BaseRepresentation
bin111100101001100001
3110121202122
4330221201
530422132
65154025
72053151
oct745141
9417678
10248417
1115a704
12bb915
13890c0
1466761
154d912
hex3ca61

248417 has 8 divisors (see below), whose sum is σ = 271656. Its totient is φ = 225792.

The previous prime is 248407. The next prime is 248431. The reversal of 248417 is 714842.

248417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 55696 + 192721 = 236^2 + 439^2 .

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 248417 - 24 = 248401 is a prime.

It is a super-2 number, since 2×2484172 = 123422011778, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 248417.

It is not an unprimeable number, because it can be changed into a prime (248407) 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, 1163 + ... + 1359.

It is an arithmetic number, because the mean of its divisors is an integer number (33957).

2248417 is an apocalyptic number.

It is an amenable number.

248417 is a deficient number, since it is larger than the sum of its proper divisors (23239).

248417 is a wasteful number, since it uses less digits than its factorization.

248417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307.

The product of its digits is 1792, while the sum is 26.

The square root of 248417 is about 498.4144861458. The cubic root of 248417 is about 62.8628071932.

The spelling of 248417 in words is "two hundred forty-eight thousand, four hundred seventeen".

Divisors: 1 13 97 197 1261 2561 19109 248417