Base | Representation |
---|---|
bin | 11101101000001… |
… | …00000010111001 |
3 | 122022122120210210 |
4 | 32310010002321 |
5 | 1002110412311 |
6 | 40354501333 |
7 | 6105314403 |
oct | 1664040271 |
9 | 568576723 |
10 | 248529081 |
11 | 118319639 |
12 | 6b294849 |
13 | 3c649038 |
14 | 25015b73 |
15 | 16c433a6 |
hex | ed040b9 |
248529081 has 16 divisors (see below), whose sum is σ = 335276480. Its totient is φ = 163745280.
The previous prime is 248529079. The next prime is 248529089. The reversal of 248529081 is 180925842.
It is not a de Polignac number, because 248529081 - 21 = 248529079 is a prime.
It is a super-2 number, since 2×2485290812 = 123533408205409122, which contains 22 as substring.
It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (248529089) 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, 99261 + ... + 101733.
It is an arithmetic number, because the mean of its divisors is an integer number (20954780).
Almost surely, 2248529081 is an apocalyptic number.
It is an amenable number.
248529081 is a deficient number, since it is larger than the sum of its proper divisors (86747399).
248529081 is a wasteful number, since it uses less digits than its factorization.
248529081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2856.
The product of its (nonzero) digits is 46080, while the sum is 39.
The square root of 248529081 is about 15764.8051367595. The cubic root of 248529081 is about 628.7225993722.
It can be divided in two parts, 24852 and 9081, that added together give a palindrome (33933).
The spelling of 248529081 in words is "two hundred forty-eight million, five hundred twenty-nine thousand, eighty-one".
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