Base | Representation |
---|---|
bin | 11101001101010… |
… | …10100110100001 |
3 | 122002001011010110 |
4 | 32212222212201 |
5 | 1000211020433 |
6 | 40151321533 |
7 | 6033416154 |
oct | 1646524641 |
9 | 562034113 |
10 | 245016993 |
11 | 11633a991 |
12 | 6a0802a9 |
13 | 3b9b9590 |
14 | 2477dc9b |
15 | 1679c963 |
hex | e9aa9a1 |
245016993 has 8 divisors (see below), whose sum is σ = 351819328. Its totient is φ = 150779664.
The previous prime is 245016991. The next prime is 245017001. The reversal of 245016993 is 399610542.
245016993 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 not a de Polignac number, because 245016993 - 21 = 245016991 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 6282487 = 245016993 / (2 + 4 + 5 + 0 + 1 + 6 + 9 + 9 + 3).
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (245016991) 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, 3141205 + ... + 3141282.
It is an arithmetic number, because the mean of its divisors is an integer number (43977416).
Almost surely, 2245016993 is an apocalyptic number.
It is an amenable number.
245016993 is a deficient number, since it is larger than the sum of its proper divisors (106802335).
245016993 is a wasteful number, since it uses less digits than its factorization.
245016993 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6282503.
The product of its (nonzero) digits is 58320, while the sum is 39.
The square root of 245016993 is about 15653.0186545599. The cubic root of 245016993 is about 625.7469409977.
The spelling of 245016993 in words is "two hundred forty-five million, sixteen thousand, nine hundred ninety-three".
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