Base | Representation |
---|---|
bin | 1000010000010… |
… | …00100010000000 |
3 | 11211021210202000 |
4 | 10020020202000 |
5 | 120211202320 |
6 | 10512024000 |
7 | 1500352455 |
oct | 410104200 |
9 | 154253660 |
10 | 69240960 |
11 | 360a2838 |
12 | 1b232000 |
13 | 114641a9 |
14 | 92a582c |
15 | 612ac90 |
hex | 4208880 |
69240960 has 128 divisors (see below), whose sum is σ = 245289600. Its totient is φ = 18459648.
The previous prime is 69240953. The next prime is 69240961. The reversal of 69240960 is 6904296.
It is a tau number, because it is divible by the number of its divisors (128).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (69240961) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15277 + ... + 19283.
It is an arithmetic number, because the mean of its divisors is an integer number (1916325).
Almost surely, 269240960 is an apocalyptic number.
69240960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 69240960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122644800).
69240960 is an abundant number, since it is smaller than the sum of its proper divisors (176048640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69240960 is a wasteful number, since it uses less digits than its factorization.
69240960 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4035 (or 4017 counting only the distinct ones).
The product of its (nonzero) digits is 23328, while the sum is 36.
The square root of 69240960 is about 8321.1153098608. The cubic root of 69240960 is about 410.6334843225.
The spelling of 69240960 in words is "sixty-nine million, two hundred forty thousand, nine hundred sixty".
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