Base | Representation |
---|---|
bin | 1101110001110… |
… | …0101010010000 |
3 | 11000201222201000 |
4 | 3130130222100 |
5 | 104243222242 |
6 | 5422342000 |
7 | 1301125155 |
oct | 334345220 |
9 | 130658630 |
10 | 57789072 |
11 | 2a690870 |
12 | 1742a900 |
13 | bc84823 |
14 | 796422c |
15 | 5117a4c |
hex | 371ca90 |
57789072 has 80 divisors (see below), whose sum is σ = 180970560. Its totient is φ = 17510400.
The previous prime is 57789047. The next prime is 57789073. The reversal of 57789072 is 27098775.
57789072 is a `hidden beast` number, since 577 + 8 + 9 + 0 + 72 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57789073) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1329 + ... + 10832.
It is an arithmetic number, because the mean of its divisors is an integer number (2262132).
Almost surely, 257789072 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 57789072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90485280).
57789072 is an abundant number, since it is smaller than the sum of its proper divisors (123181488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57789072 is a wasteful number, since it uses less digits than its factorization.
57789072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12189 (or 12177 counting only the distinct ones).
The product of its (nonzero) digits is 246960, while the sum is 45.
The square root of 57789072 is about 7601.9123909711. The cubic root of 57789072 is about 386.6178548504.
The spelling of 57789072 in words is "fifty-seven million, seven hundred eighty-nine thousand, seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •