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1298275 = 52114721
BaseRepresentation
bin100111100111101100011
32102221220021
410330331203
5313021100
643454311
714015026
oct4747543
92387807
101298275
11807460
12527397
13365c14
1425b1bd
151a9a1a
hex13cf63

1298275 has 12 divisors (see below), whose sum is σ = 1756584. Its totient is φ = 944000.

The previous prime is 1298261. The next prime is 1298279. The reversal of 1298275 is 5728921.

It is not a de Polignac number, because 1298275 - 211 = 1296227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1298275.

It is not an unprimeable number, because it can be changed into a prime (1298279) 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 11 ways as a sum of consecutive naturals, for example, 2086 + ... + 2635.

It is an arithmetic number, because the mean of its divisors is an integer number (146382).

21298275 is an apocalyptic number.

1298275 is a deficient number, since it is larger than the sum of its proper divisors (458309).

1298275 is a wasteful number, since it uses less digits than its factorization.

1298275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4742 (or 4737 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 1298275 is about 1139.4187114490. The cubic root of 1298275 is about 109.0909937920.

The spelling of 1298275 in words is "one million, two hundred ninety-eight thousand, two hundred seventy-five".

Divisors: 1 5 11 25 55 275 4721 23605 51931 118025 259655 1298275