Base | Representation |
---|---|
bin | 1101011011111010… |
… | …01000011100101010 |
3 | 200121201101021120201 |
4 | 12231331020130222 |
5 | 104233120413200 |
6 | 3151441142414 |
7 | 343520215351 |
oct | 65575103452 |
9 | 20551337521 |
10 | 7213451050 |
11 | 30718945a3 |
12 | 149392aa0a |
13 | 8ac5bc840 |
14 | 4c6040998 |
15 | 2c342dc6a |
hex | 1adf4872a |
7213451050 has 192 divisors, whose sum is σ = 15869921760. Its totient is φ = 2415329280.
The previous prime is 7213451041. The next prime is 7213451057. The reversal of 7213451050 is 501543127.
It is a happy number.
It can be written as a sum of positive squares in 48 ways, for example, as 2941652169 + 4271798881 = 54237^2 + 65359^2 .
It is a super-2 number, since 2×72134510502 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (7213451057) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63835794 + ... + 63835906.
Almost surely, 27213451050 is an apocalyptic number.
7213451050 is an abundant number, since it is smaller than the sum of its proper divisors (8656470710).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7213451050 is a wasteful number, since it uses less digits than its factorization.
7213451050 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 317 (or 312 counting only the distinct ones).
The product of its (nonzero) digits is 4200, while the sum is 28.
The square root of 7213451050 is about 84932.0378302558. The cubic root of 7213451050 is about 1932.1805068985.
Adding to 7213451050 its reverse (501543127), we get a palindrome (7714994177).
The spelling of 7213451050 in words is "seven billion, two hundred thirteen million, four hundred fifty-one thousand, fifty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •