Base | Representation |
---|---|
bin | 1000011000100… |
… | …11010011110000 |
3 | 11220100022200010 |
4 | 10030103103300 |
5 | 121001134210 |
6 | 10551254520 |
7 | 1512553314 |
oct | 414232360 |
9 | 156308603 |
10 | 70333680 |
11 | 3677980a |
12 | 1b67a440 |
13 | 11757681 |
14 | 94abb44 |
15 | 6294920 |
hex | 43134f0 |
70333680 has 80 divisors (see below), whose sum is σ = 219164544. Its totient is φ = 18658560.
The previous prime is 70333631. The next prime is 70333691. The reversal of 70333680 is 8633307.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53835 + ... + 55125.
Almost surely, 270333680 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 70333680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109582272).
70333680 is an abundant number, since it is smaller than the sum of its proper divisors (148830864).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70333680 is a wasteful number, since it uses less digits than its factorization.
70333680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1534 (or 1528 counting only the distinct ones).
The product of its (nonzero) digits is 9072, while the sum is 30.
The square root of 70333680 is about 8386.5177517251. The cubic root of 70333680 is about 412.7823448071.
Adding to 70333680 its reverse (8633307), we get a palindrome (78966987).
The spelling of 70333680 in words is "seventy million, three hundred thirty-three thousand, six hundred eighty".
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