Base | Representation |
---|---|
bin | 11101100101011… |
… | …01000101010001 |
3 | 122021222111012012 |
4 | 32302231011101 |
5 | 1002013013011 |
6 | 40343112305 |
7 | 6102302045 |
oct | 1662550521 |
9 | 567874165 |
10 | 248172881 |
11 | 1180a5a60 |
12 | 6b142695 |
13 | 3c552b78 |
14 | 24d62025 |
15 | 16bc2a8b |
hex | ecad151 |
248172881 has 8 divisors (see below), whose sum is σ = 270865728. Its totient is φ = 225502000.
The previous prime is 248172839. The next prime is 248172907. The reversal of 248172881 is 188271842.
248172881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-248172881 is a prime.
It is a super-2 number, since 2×2481728812 = 123179557727680322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (248172811) 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, 26036 + ... + 34266.
It is an arithmetic number, because the mean of its divisors is an integer number (33858216).
Almost surely, 2248172881 is an apocalyptic number.
It is an amenable number.
248172881 is a deficient number, since it is larger than the sum of its proper divisors (22692847).
248172881 is a wasteful number, since it uses less digits than its factorization.
248172881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10983.
The product of its digits is 57344, while the sum is 41.
The square root of 248172881 is about 15753.5037690033. The cubic root of 248172881 is about 628.4220871671.
The spelling of 248172881 in words is "two hundred forty-eight million, one hundred seventy-two thousand, eight hundred eighty-one".
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