Base | Representation |
---|---|
bin | 111000111000001111… |
… | …110001101001000000 |
3 | 12211122022000002202101 |
4 | 320320033301221000 |
5 | 2000034214423403 |
6 | 44020122400144 |
7 | 4261310435500 |
oct | 707017615100 |
9 | 184568002671 |
10 | 61073201728 |
11 | 239a0259440 |
12 | ba05360054 |
13 | 59b3bb72b6 |
14 | 2d55217a00 |
15 | 18c6a9371d |
hex | e383f1a40 |
61073201728 has 336 divisors, whose sum is σ = 158780805120. Its totient is φ = 23035622400.
The previous prime is 61073201723. The next prime is 61073201747. The reversal of 61073201728 is 82710237016.
It is not an unprimeable number, because it can be changed into a prime (61073201723) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 225362233 + ... + 225362503.
It is an arithmetic number, because the mean of its divisors is an integer number (472561920).
Almost surely, 261073201728 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 61073201728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79390402560).
61073201728 is an abundant number, since it is smaller than the sum of its proper divisors (97707603392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61073201728 is a wasteful number, since it uses less digits than its factorization.
61073201728 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 494 (or 477 counting only the distinct ones).
The product of its (nonzero) digits is 28224, while the sum is 37.
The spelling of 61073201728 in words is "sixty-one billion, seventy-three million, two hundred one thousand, seven hundred twenty-eight".
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