Base | Representation |
---|---|
bin | 1101010011110011… |
… | …11100001100100010 |
3 | 200102222112021220110 |
4 | 12221321330030202 |
5 | 104113222134240 |
6 | 3141012552150 |
7 | 342033536520 |
oct | 65171741442 |
9 | 20388467813 |
10 | 7145505570 |
11 | 30374a7105 |
12 | 1475022656 |
13 | 89b4c0208 |
14 | 4badd5310 |
15 | 2bc4abc80 |
hex | 1a9e7c322 |
7145505570 has 32 divisors (see below), whose sum is σ = 19599101568. Its totient is φ = 1633258368.
The previous prime is 7145505481. The next prime is 7145505571. The reversal of 7145505570 is 755055417.
It is not an unprimeable number, because it can be changed into a prime (7145505571) 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 15 ways as a sum of consecutive naturals, for example, 17012899 + ... + 17013318.
It is an arithmetic number, because the mean of its divisors is an integer number (612471924).
Almost surely, 27145505570 is an apocalyptic number.
7145505570 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
7145505570 is an abundant number, since it is smaller than the sum of its proper divisors (12453595998).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7145505570 is a wasteful number, since it uses less digits than its factorization.
7145505570 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34026234.
The product of its (nonzero) digits is 122500, while the sum is 39.
The square root of 7145505570 is about 84531.0923270249. The cubic root of 7145505570 is about 1926.0947790735.
The spelling of 7145505570 in words is "seven billion, one hundred forty-five million, five hundred five thousand, five hundred seventy".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •