Base | Representation |
---|---|
bin | 1000010010011… |
… | …11011000100000 |
3 | 11211211112211110 |
4 | 10021033120200 |
5 | 120244444133 |
6 | 10522143320 |
7 | 1503001530 |
oct | 411173040 |
9 | 154745743 |
10 | 69531168 |
11 | 36280883 |
12 | 1b351b40 |
13 | 11536305 |
14 | 933d4c0 |
15 | 6186c63 |
hex | 424f620 |
69531168 has 96 divisors (see below), whose sum is σ = 210760704. Its totient is φ = 19660032.
The previous prime is 69531167. The next prime is 69531169. The reversal of 69531168 is 86113596.
It is an interprime number because it is at equal distance from previous prime (69531167) and next prime (69531169).
It is a tau number, because it is divible by the number of its divisors (96).
It is not an unprimeable number, because it can be changed into a prime (69531167) 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, 71421 + ... + 72387.
It is an arithmetic number, because the mean of its divisors is an integer number (2195424).
Almost surely, 269531168 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 69531168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105380352).
69531168 is an abundant number, since it is smaller than the sum of its proper divisors (141229536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69531168 is a wasteful number, since it uses less digits than its factorization.
69531168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1094 (or 1086 counting only the distinct ones).
The product of its digits is 38880, while the sum is 39.
The square root of 69531168 is about 8338.5351231496. The cubic root of 69531168 is about 411.2063774894.
The spelling of 69531168 in words is "sixty-nine million, five hundred thirty-one thousand, one hundred sixty-eight".
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