Base | Representation |
---|---|
bin | 1000010111100… |
… | …00010010100000 |
3 | 11220002000220112 |
4 | 10023300102200 |
5 | 120432041430 |
6 | 10544230452 |
7 | 1511415161 |
oct | 413602240 |
9 | 156060815 |
10 | 70190240 |
11 | 36690a6a |
12 | 1b60b428 |
13 | 117072b3 |
14 | 9471768 |
15 | 6267195 |
hex | 42f04a0 |
70190240 has 48 divisors (see below), whose sum is σ = 166756968. Its totient is φ = 27918336.
The previous prime is 70190213. The next prime is 70190243. The reversal of 70190240 is 4209107.
It can be written as a sum of positive squares in 4 ways, for example, as 60777616 + 9412624 = 7796^2 + 3068^2 .
It is not an unprimeable number, because it can be changed into a prime (70190243) 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, 29744 + ... + 32016.
Almost surely, 270190240 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 70190240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83378484).
70190240 is an abundant number, since it is smaller than the sum of its proper divisors (96566728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70190240 is a wasteful number, since it uses less digits than its factorization.
70190240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2481 (or 2473 counting only the distinct ones).
The product of its (nonzero) digits is 504, while the sum is 23.
The square root of 70190240 is about 8377.9615659180. The cubic root of 70190240 is about 412.5015414696.
Adding to 70190240 its reverse (4209107), we get a palindrome (74399347).
The spelling of 70190240 in words is "seventy million, one hundred ninety thousand, two hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •