Base | Representation |
---|---|
bin | 1110101111110… |
… | …0001111001000 |
3 | 11022101100000210 |
4 | 3223330033020 |
5 | 111313204233 |
6 | 10045401120 |
7 | 1350502233 |
oct | 353741710 |
9 | 138340023 |
10 | 61850568 |
11 | 31a0527a |
12 | 188691a0 |
13 | ca77390 |
14 | 830041a |
15 | 566b163 |
hex | 3afc3c8 |
61850568 has 64 divisors (see below), whose sum is σ = 167852160. Its totient is φ = 18878976.
The previous prime is 61850563. The next prime is 61850587. The reversal of 61850568 is 86505816.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is not an unprimeable number, because it can be changed into a prime (61850563) 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, 42021 + ... + 43467.
It is an arithmetic number, because the mean of its divisors is an integer number (2622690).
Almost surely, 261850568 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 61850568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83926080).
61850568 is an abundant number, since it is smaller than the sum of its proper divisors (106001592).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61850568 is a wasteful number, since it uses less digits than its factorization.
61850568 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1606 (or 1602 counting only the distinct ones).
The product of its (nonzero) digits is 57600, while the sum is 39.
The square root of 61850568 is about 7864.5132080759. The cubic root of 61850568 is about 395.4709290033.
The spelling of 61850568 in words is "sixty-one million, eight hundred fifty thousand, five hundred sixty-eight".
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