Base | Representation |
---|---|
bin | 1000010110011… |
… | …10000101001000 |
3 | 11212210220200220 |
4 | 10023032011020 |
5 | 120413100440 |
6 | 10541230040 |
7 | 1510262520 |
oct | 413160510 |
9 | 155726626 |
10 | 70050120 |
11 | 365a5768 |
12 | 1b562320 |
13 | 1168859a |
14 | 9436680 |
15 | 623a8d0 |
hex | 42ce148 |
70050120 has 128 divisors (see below), whose sum is σ = 243129600. Its totient is φ = 15814656.
The previous prime is 70050089. The next prime is 70050121. The reversal of 70050120 is 2105007.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 70050120.
It is not an unprimeable number, because it can be changed into a prime (70050121) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74292 + ... + 75228.
It is an arithmetic number, because the mean of its divisors is an integer number (1899450).
Almost surely, 270050120 is an apocalyptic number.
70050120 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 70050120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121564800).
70050120 is an abundant number, since it is smaller than the sum of its proper divisors (173079480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70050120 is a wasteful number, since it uses less digits than its factorization.
70050120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1047 (or 1043 counting only the distinct ones).
The product of its (nonzero) digits is 70, while the sum is 15.
The square root of 70050120 is about 8369.5949722791. The cubic root of 70050120 is about 412.2268678571.
Adding to 70050120 its reverse (2105007), we get a palindrome (72155127).
The spelling of 70050120 in words is "seventy million, fifty thousand, one hundred twenty".
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