Base | Representation |
---|---|
bin | 110101101101111001… |
… | …100001111100101110 |
3 | 12111212201000220202020 |
4 | 311231321201330232 |
5 | 1421111130411104 |
6 | 42255211411010 |
7 | 4111216035600 |
oct | 655571417456 |
9 | 174781026666 |
10 | 57678372654 |
11 | 22508a35081 |
12 | b218453a66 |
13 | 5592781cb6 |
14 | 2b123d5170 |
15 | 1778a0d2d9 |
hex | d6de61f2e |
57678372654 has 96 divisors (see below), whose sum is σ = 135271205280. Its totient is φ = 16347276288.
The previous prime is 57678372641. The next prime is 57678372691. The reversal of 57678372654 is 45627387675.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28939482 + ... + 28941474.
It is an arithmetic number, because the mean of its divisors is an integer number (1409075055).
Almost surely, 257678372654 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 57678372654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67635602640).
57678372654 is an abundant number, since it is smaller than the sum of its proper divisors (77592832626).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57678372654 is a wasteful number, since it uses less digits than its factorization.
57678372654 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2754 (or 2747 counting only the distinct ones).
The product of its digits is 59270400, while the sum is 60.
The spelling of 57678372654 in words is "fifty-seven billion, six hundred seventy-eight million, three hundred seventy-two thousand, six hundred fifty-four".
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