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248272297 = 71319143593
BaseRepresentation
bin11101100110001…
…01010110101001
3122022011112120021
432303011112221
51002024203142
640345200441
76103164640
oct1663052651
9568145507
10248272297
11118163719
126b190121
133c5891b0
1424d8a357
1516be2267
hexecc55a9

248272297 has 16 divisors (see below), whose sum is σ = 321650560. Its totient is φ = 186095232.

The previous prime is 248272289. The next prime is 248272307. The reversal of 248272297 is 792272842.

It is a cyclic number.

It is not a de Polignac number, because 248272297 - 23 = 248272289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (248272247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70068 + ... + 73525.

It is an arithmetic number, because the mean of its divisors is an integer number (20103160).

Almost surely, 2248272297 is an apocalyptic number.

It is an amenable number.

248272297 is a deficient number, since it is larger than the sum of its proper divisors (73378263).

248272297 is a wasteful number, since it uses less digits than its factorization.

248272297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143632.

The product of its digits is 225792, while the sum is 43.

The square root of 248272297 is about 15756.6588146091. The cubic root of 248272297 is about 628.5059895251.

The spelling of 248272297 in words is "two hundred forty-eight million, two hundred seventy-two thousand, two hundred ninety-seven".

Divisors: 1 7 13 19 91 133 247 1729 143593 1005151 1866709 2728267 13066963 19097869 35467471 248272297