Base | Representation |
---|---|
bin | 11101100100101… |
… | …11110000110001 |
3 | 122021211001101211 |
4 | 32302113300301 |
5 | 1002002214203 |
6 | 40341200121 |
7 | 6101456332 |
oct | 1662276061 |
9 | 567731354 |
10 | 248085553 |
11 | 118046391 |
12 | 6b100041 |
13 | 3c5221b1 |
14 | 24d3c289 |
15 | 16ba6c6d |
hex | ec97c31 |
248085553 has 4 divisors (see below), whose sum is σ = 248122980. Its totient is φ = 248048128.
The previous prime is 248085499. The next prime is 248085557. The reversal of 248085553 is 355580842.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355580842 = 2 ⋅177790421.
It can be written as a sum of positive squares in 2 ways, for example, as 163021824 + 85063729 = 12768^2 + 9223^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-248085553 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (248085557) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5800 + ... + 23017.
It is an arithmetic number, because the mean of its divisors is an integer number (62030745).
Almost surely, 2248085553 is an apocalyptic number.
It is an amenable number.
248085553 is a deficient number, since it is larger than the sum of its proper divisors (37427).
248085553 is an equidigital number, since it uses as much as digits as its factorization.
248085553 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37426.
The product of its (nonzero) digits is 192000, while the sum is 40.
The square root of 248085553 is about 15750.7318242677. The cubic root of 248085553 is about 628.3483680161.
The spelling of 248085553 in words is "two hundred forty-eight million, eighty-five thousand, five hundred fifty-three".
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