Base | Representation |
---|---|
bin | 1000010111110… |
… | …10000111010000 |
3 | 11220011002002220 |
4 | 10023322013100 |
5 | 120434333410 |
6 | 10545141040 |
7 | 1511643405 |
oct | 413720720 |
9 | 156132086 |
10 | 70230480 |
11 | 36709221 |
12 | 1b62a780 |
13 | 1171c6c8 |
14 | 94822ac |
15 | 6274070 |
hex | 42fa1d0 |
70230480 has 40 divisors (see below), whose sum is σ = 217715232. Its totient is φ = 18728064.
The previous prime is 70230443. The next prime is 70230487. The reversal of 70230480 is 8403207.
It is a tau number, because it is divible by the number of its divisors (40).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 70230480.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70230487) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146074 + ... + 146553.
Almost surely, 270230480 is an apocalyptic number.
It is an amenable number.
70230480 is an abundant number, since it is smaller than the sum of its proper divisors (147484752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70230480 is a wasteful number, since it uses less digits than its factorization.
70230480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 292643 (or 292637 counting only the distinct ones).
The product of its (nonzero) digits is 1344, while the sum is 24.
The square root of 70230480 is about 8380.3627606447. The cubic root of 70230480 is about 412.5803553283.
Adding to 70230480 its reverse (8403207), we get a palindrome (78633687).
The spelling of 70230480 in words is "seventy million, two hundred thirty thousand, four hundred eighty".
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