Base | Representation |
---|---|
bin | 101101010111001… |
… | …110000110001000 |
3 | 1222001001221110220 |
4 | 231113032012020 |
5 | 3024312434033 |
6 | 203304110040 |
7 | 24600626655 |
oct | 5527160610 |
9 | 1861057426 |
10 | 761061768 |
11 | 360665a75 |
12 | 192a65320 |
13 | c189b70c |
14 | 73110c2c |
15 | 46c34bb3 |
hex | 2d5ce188 |
761061768 has 64 divisors (see below), whose sum is σ = 1971604800. Its totient is φ = 244657920.
The previous prime is 761061737. The next prime is 761061779. The reversal of 761061768 is 867160167.
It is a super-2 number, since 2×7610617682 = 1158430029422571648, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69978 + ... + 80118.
It is an arithmetic number, because the mean of its divisors is an integer number (30806325).
Almost surely, 2761061768 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 761061768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985802400).
761061768 is an abundant number, since it is smaller than the sum of its proper divisors (1210543032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
761061768 is a wasteful number, since it uses less digits than its factorization.
761061768 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10262 (or 10258 counting only the distinct ones).
The product of its (nonzero) digits is 84672, while the sum is 42.
The square root of 761061768 is about 27587.3479696762. The cubic root of 761061768 is about 913.0053068684.
It can be divided in two parts, 7610 and 61768, that added together give a triangular number (69378 = T372).
The spelling of 761061768 in words is "seven hundred sixty-one million, sixty-one thousand, seven hundred sixty-eight".
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