Base | Representation |
---|---|
bin | 1011011110100010… |
… | …10110010001110000 |
3 | 120220102111011022010 |
4 | 11233101112101300 |
5 | 100104404122333 |
6 | 2455232242520 |
7 | 305460213402 |
oct | 55721262160 |
9 | 16812434263 |
10 | 6161785968 |
11 | 2682192aa8 |
12 | 123b6a0440 |
13 | 772763400 |
14 | 4264c4b72 |
15 | 260e44563 |
hex | 16f456470 |
6161785968 has 60 divisors (see below), whose sum is σ = 17236616280. Its totient is φ = 1895931648.
The previous prime is 6161785967. The next prime is 6161785969. The reversal of 6161785968 is 8695871616.
It is an interprime number because it is at equal distance from previous prime (6161785967) and next prime (6161785969).
It is a super-3 number, since 3×61617859683 (a number of 30 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6161785967) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371683 + ... + 387906.
It is an arithmetic number, because the mean of its divisors is an integer number (287276938).
Almost surely, 26161785968 is an apocalyptic number.
It is an amenable number.
6161785968 is an abundant number, since it is smaller than the sum of its proper divisors (11074830312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6161785968 is a wasteful number, since it uses less digits than its factorization.
6161785968 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 759626 (or 759607 counting only the distinct ones).
The product of its digits is 4354560, while the sum is 57.
The square root of 6161785968 is about 78497.0443265223. The cubic root of 6161785968 is about 1833.3084335865.
The spelling of 6161785968 in words is "six billion, one hundred sixty-one million, seven hundred eighty-five thousand, nine hundred sixty-eight".
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