Base | Representation |
---|---|
bin | 111001100101011101… |
… | …010100101110000001 |
3 | 12220121011022020012001 |
4 | 321211131110232001 |
5 | 2003112410244001 |
6 | 44223300304001 |
7 | 4316151005401 |
oct | 714535245601 |
9 | 186534266161 |
10 | 61831728001 |
11 | 2424a44245a |
12 | bb973a2001 |
13 | 5aa50a8904 |
14 | 2dc7c68801 |
15 | 191d477001 |
hex | e65754b81 |
61831728001 has 8 divisors (see below), whose sum is σ = 64093363200. Its totient is φ = 59586784320.
The previous prime is 61831727983. The next prime is 61831728043. The reversal of 61831728001 is 10082713816.
61831728001 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 a cyclic number.
It is not a de Polignac number, because 61831728001 - 231 = 59684244353 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (61831728061) 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, 4165336 + ... + 4180153.
It is an arithmetic number, because the mean of its divisors is an integer number (8011670400).
Almost surely, 261831728001 is an apocalyptic number.
It is an amenable number.
61831728001 is a deficient number, since it is larger than the sum of its proper divisors (2261635199).
61831728001 is a wasteful number, since it uses less digits than its factorization.
61831728001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8345759.
The product of its (nonzero) digits is 16128, while the sum is 37.
The spelling of 61831728001 in words is "sixty-one billion, eight hundred thirty-one million, seven hundred twenty-eight thousand, one".
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