Base | Representation |
---|---|
bin | 1110101110111… |
… | …0100110110010 |
3 | 11022021111110000 |
4 | 3223232212302 |
5 | 111304412423 |
6 | 10044250430 |
7 | 1350150405 |
oct | 353564662 |
9 | 138244400 |
10 | 61794738 |
11 | 31977335 |
12 | 18840a16 |
13 | ca57b45 |
14 | 82c7d3c |
15 | 5659843 |
hex | 3aee9b2 |
61794738 has 40 divisors (see below), whose sum is σ = 139304880. Its totient is φ = 20473560.
The previous prime is 61794731. The next prime is 61794757. The reversal of 61794738 is 83749716.
61794738 is a `hidden beast` number, since 6 + 179 + 473 + 8 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 61794693 and 61794702.
It is not an unprimeable number, because it can be changed into a prime (61794731) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27933 + ... + 30063.
It is an arithmetic number, because the mean of its divisors is an integer number (3482622).
Almost surely, 261794738 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 61794738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69652440).
61794738 is an abundant number, since it is smaller than the sum of its proper divisors (77510142).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61794738 is a wasteful number, since it uses less digits than its factorization.
61794738 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2324 (or 2315 counting only the distinct ones).
The product of its digits is 254016, while the sum is 45.
The square root of 61794738 is about 7860.9629181163. The cubic root of 61794738 is about 395.3519013246.
The spelling of 61794738 in words is "sixty-one million, seven hundred ninety-four thousand, seven hundred thirty-eight".
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