Base | Representation |
---|---|
bin | 110101010100000110… |
… | …011101101000110000 |
3 | 12110202112121111212221 |
4 | 311110012131220300 |
5 | 1414214330231443 |
6 | 42144230530424 |
7 | 4064412122350 |
oct | 652406355060 |
9 | 173675544787 |
10 | 57245555248 |
11 | 22306694a42 |
12 | b117506a14 |
13 | 5523bc021b |
14 | 2ab0b2ab60 |
15 | 1750a15eed |
hex | d5419da30 |
57245555248 has 80 divisors (see below), whose sum is σ = 129242013696. Its totient is φ = 24053702400.
The previous prime is 57245555243. The next prime is 57245555249. The reversal of 57245555248 is 84255554275.
It is a junction number, because it is equal to n+sod(n) for n = 57245555195 and 57245555204.
It is not an unprimeable number, because it can be changed into a prime (57245555243) 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, 11578665 + ... + 11583607.
Almost surely, 257245555248 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 57245555248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64621006848).
57245555248 is an abundant number, since it is smaller than the sum of its proper divisors (71996458448).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57245555248 is a wasteful number, since it uses less digits than its factorization.
57245555248 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6962 (or 6956 counting only the distinct ones).
The product of its digits is 11200000, while the sum is 52.
The spelling of 57245555248 in words is "fifty-seven billion, two hundred forty-five million, five hundred fifty-five thousand, two hundred forty-eight".
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