Base | Representation |
---|---|
bin | 1000010001111… |
… | …11001010101001 |
3 | 11211201011201100 |
4 | 10020333022221 |
5 | 120240332440 |
6 | 10520512013 |
7 | 1502304060 |
oct | 410771251 |
9 | 154634640 |
10 | 69464745 |
11 | 36235989 |
12 | 1b31b609 |
13 | 11511ccc |
14 | 93231d7 |
15 | 6172230 |
hex | 423f2a9 |
69464745 has 48 divisors (see below), whose sum is σ = 139007232. Its totient is φ = 31432320.
The previous prime is 69464743. The next prime is 69464749. The reversal of 69464745 is 54746496.
It is not a de Polignac number, because 69464745 - 21 = 69464743 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 69464745.
It is not an unprimeable number, because it can be changed into a prime (69464743) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31375 + ... + 33515.
It is an arithmetic number, because the mean of its divisors is an integer number (2895984).
Almost surely, 269464745 is an apocalyptic number.
It is an amenable number.
69464745 is an abundant number, since it is smaller than the sum of its proper divisors (69542487).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69464745 is a wasteful number, since it uses less digits than its factorization.
69464745 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2262 (or 2259 counting only the distinct ones).
The product of its digits is 725760, while the sum is 45.
The square root of 69464745 is about 8334.5512776634. The cubic root of 69464745 is about 411.0753941997.
The spelling of 69464745 in words is "sixty-nine million, four hundred sixty-four thousand, seven hundred forty-five".
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