Base | Representation |
---|---|
bin | 1000010011110… |
… | …11100101010100 |
3 | 11212011202011210 |
4 | 10021323211110 |
5 | 120321242322 |
6 | 10530101420 |
7 | 1504354413 |
oct | 411734524 |
9 | 155152153 |
10 | 69712212 |
11 | 363948a9 |
12 | 1b41a870 |
13 | 1159a83b |
14 | 938947a |
15 | 61c070c |
hex | 427b954 |
69712212 has 24 divisors (see below), whose sum is σ = 164185056. Its totient is φ = 23019808.
The previous prime is 69712171. The next prime is 69712213. The reversal of 69712212 is 21221796.
It is a self number, because there is not a number n which added to its sum of digits gives 69712212.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69712213) 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 7 ways as a sum of consecutive naturals, for example, 25863 + ... + 28430.
It is an arithmetic number, because the mean of its divisors is an integer number (6841044).
Almost surely, 269712212 is an apocalyptic number.
It is an amenable number.
69712212 is an abundant number, since it is smaller than the sum of its proper divisors (94472844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69712212 is a wasteful number, since it uses less digits than its factorization.
69712212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 54407 (or 54405 counting only the distinct ones).
The product of its digits is 3024, while the sum is 30.
The square root of 69712212 is about 8349.3839293687. The cubic root of 69712212 is about 411.5629654233.
The spelling of 69712212 in words is "sixty-nine million, seven hundred twelve thousand, two hundred twelve".
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