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248149 = 11171327
BaseRepresentation
bin111100100101010101
3110121101201
4330211111
530420044
65152501
72052316
oct744525
9417351
10248149
1115a490
12bb731
1388c45
146660d
154d7d4
hex3c955

248149 has 8 divisors (see below), whose sum is σ = 286848. Its totient is φ = 212160.

The previous prime is 248141. The next prime is 248161. The reversal of 248149 is 941842.

248149 is nontrivially palindromic in base 15.

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

It is not a de Polignac number, because 248149 - 23 = 248141 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248141) 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, 477 + ... + 850.

It is an arithmetic number, because the mean of its divisors is an integer number (35856).

2248149 is an apocalyptic number.

It is an amenable number.

248149 is a deficient number, since it is larger than the sum of its proper divisors (38699).

248149 is a wasteful number, since it uses less digits than its factorization.

248149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355.

The product of its digits is 2304, while the sum is 28.

The square root of 248149 is about 498.1455610562. The cubic root of 248149 is about 62.8401929406.

The spelling of 248149 in words is "two hundred forty-eight thousand, one hundred forty-nine".

Divisors: 1 11 17 187 1327 14597 22559 248149