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248121 = 32191451
BaseRepresentation
bin111100100100111001
3110121100200
4330210321
530414441
65152413
72052246
oct744471
9417320
10248121
1115a465
12bb709
1388c23
14665cd
154d7b6
hex3c939

248121 has 12 divisors (see below), whose sum is σ = 377520. Its totient is φ = 156600.

The previous prime is 248119. The next prime is 248137. The reversal of 248121 is 121842.

It is not a de Polignac number, because 248121 - 21 = 248119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 248094 and 248103.

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 11 ways as a sum of consecutive naturals, for example, 555 + ... + 896.

It is an arithmetic number, because the mean of its divisors is an integer number (31460).

2248121 is an apocalyptic number.

It is an amenable number.

248121 is a deficient number, since it is larger than the sum of its proper divisors (129399).

248121 is a wasteful number, since it uses less digits than its factorization.

248121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476 (or 1473 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 248121 is about 498.1174560282. The cubic root of 248121 is about 62.8378293182.

Adding to 248121 its reverse (121842), we get a palindrome (369963).

The spelling of 248121 in words is "two hundred forty-eight thousand, one hundred twenty-one".

Divisors: 1 3 9 19 57 171 1451 4353 13059 27569 82707 248121