Base | Representation |
---|---|
bin | 1101100000101001… |
… | …00100011111111010 |
3 | 200201111002011212201 |
4 | 12300110210133322 |
5 | 104323301242230 |
6 | 3155420100414 |
7 | 344511520003 |
oct | 66024443772 |
9 | 20644064781 |
10 | 7253149690 |
11 | 3092239796 |
12 | 14a509470a |
13 | 8b78ac167 |
14 | 4cb4161aa |
15 | 2c6b715ca |
hex | 1b05247fa |
7253149690 has 64 divisors (see below), whose sum is σ = 13892497920. Its totient is φ = 2721600000.
The previous prime is 7253149669. The next prime is 7253149691. The reversal of 7253149690 is 969413527.
It is a happy number.
It is a super-2 number, since 2×72531496902 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 7253149690.
It is not an unprimeable number, because it can be changed into a prime (7253149691) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3221065 + ... + 3223315.
It is an arithmetic number, because the mean of its divisors is an integer number (217070280).
Almost surely, 27253149690 is an apocalyptic number.
7253149690 is a deficient number, since it is larger than the sum of its proper divisors (6639348230).
7253149690 is a wasteful number, since it uses less digits than its factorization.
7253149690 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2599.
The product of its (nonzero) digits is 408240, while the sum is 46.
The square root of 7253149690 is about 85165.4254377914. The cubic root of 7253149690 is about 1935.7185570104.
It can be divided in two parts, 72531 and 49690, that added together give a palindrome (122221).
The spelling of 7253149690 in words is "seven billion, two hundred fifty-three million, one hundred forty-nine thousand, six hundred ninety".
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