Base | Representation |
---|---|
bin | 10101001101110000110… |
… | …11001101000011111000 |
3 | 2120200112100000020102012 |
4 | 22212320123031003320 |
5 | 43420334031042102 |
6 | 1314512211225052 |
7 | 103443621320300 |
oct | 12467033150370 |
9 | 2520470006365 |
10 | 728943612152 |
11 | 261163735918 |
12 | b93358a8188 |
13 | 5397ba11072 |
14 | 273d1324600 |
15 | 13e650b2752 |
hex | a9b86cd0f8 |
728943612152 has 48 divisors (see below), whose sum is σ = 1590444495000. Its totient is φ = 312300418752.
The previous prime is 728943612113. The next prime is 728943612157. The reversal of 728943612152 is 251216349827.
728943612152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×7289436121522 (a number of 25 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 728943612152.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (728943612157) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 875474 + ... + 1491422.
Almost surely, 2728943612152 is an apocalyptic number.
It is an amenable number.
728943612152 is an abundant number, since it is smaller than the sum of its proper divisors (861500882848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
728943612152 is a wasteful number, since it uses less digits than its factorization.
728943612152 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 618988 (or 618977 counting only the distinct ones).
The product of its digits is 1451520, while the sum is 50.
The spelling of 728943612152 in words is "seven hundred twenty-eight billion, nine hundred forty-three million, six hundred twelve thousand, one hundred fifty-two".
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