Base | Representation |
---|---|
bin | 110110000100… |
… | …1001100111001 |
3 | 1222100021211220 |
4 | 1230021030321 |
5 | 24224133431 |
6 | 2451342253 |
7 | 462651564 |
oct | 154111471 |
9 | 58307756 |
10 | 28349241 |
11 | 15003228 |
12 | 95b1989 |
13 | 5b477cb |
14 | 3a9d4db |
15 | 274eb96 |
hex | 1b09339 |
28349241 has 8 divisors (see below), whose sum is σ = 38363424. Its totient is φ = 18617280.
The previous prime is 28349239. The next prime is 28349249. The reversal of 28349241 is 14294382.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 28349241 - 21 = 28349239 is a prime.
It is not an unprimeable number, because it can be changed into a prime (28349249) 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, 70320 + ... + 70721.
It is an arithmetic number, because the mean of its divisors is an integer number (4795428).
Almost surely, 228349241 is an apocalyptic number.
It is an amenable number.
28349241 is a deficient number, since it is larger than the sum of its proper divisors (10014183).
28349241 is a wasteful number, since it uses less digits than its factorization.
28349241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 141111.
The product of its digits is 13824, while the sum is 33.
The square root of 28349241 is about 5324.4005296371. The cubic root of 28349241 is about 304.9161858744.
The spelling of 28349241 in words is "twenty-eight million, three hundred forty-nine thousand, two hundred forty-one".
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