Base | Representation |
---|---|
bin | 11101100101110… |
… | …00010001110101 |
3 | 122022001211002201 |
4 | 32302320101311 |
5 | 1002020444431 |
6 | 40344104501 |
7 | 6102552541 |
oct | 1662702165 |
9 | 568054081 |
10 | 248218741 |
11 | 118127461 |
12 | 6b165131 |
13 | 3c56a9c4 |
14 | 24d74a21 |
15 | 16bd1461 |
hex | ecb8475 |
248218741 has 4 divisors (see below), whose sum is σ = 249017184. Its totient is φ = 247420300.
The previous prime is 248218709. The next prime is 248218753. The reversal of 248218741 is 147812842.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 147812842 = 2 ⋅73906421.
It is a cyclic number.
It is not a de Polignac number, because 248218741 - 25 = 248218709 is a prime.
It is a super-2 number, since 2×2482187412 = 123225086767250162, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 248218741.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (248218771) 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, 398755 + ... + 399376.
It is an arithmetic number, because the mean of its divisors is an integer number (62254296).
Almost surely, 2248218741 is an apocalyptic number.
It is an amenable number.
248218741 is a deficient number, since it is larger than the sum of its proper divisors (798443).
248218741 is an equidigital number, since it uses as much as digits as its factorization.
248218741 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 798442.
The product of its digits is 28672, while the sum is 37.
The square root of 248218741 is about 15754.9592509787. The cubic root of 248218741 is about 628.4607936014.
The spelling of 248218741 in words is "two hundred forty-eight million, two hundred eighteen thousand, seven hundred forty-one".
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