Base | Representation |
---|---|
bin | 1111100000111… |
… | …01101100101110 |
3 | 100001220001110210 |
4 | 13300131230232 |
5 | 231304120240 |
6 | 20525243250 |
7 | 3140133456 |
oct | 760355456 |
9 | 301801423 |
10 | 130145070 |
11 | 67510a10 |
12 | 37703526 |
13 | 20c69823 |
14 | 133dad66 |
15 | b65b780 |
hex | 7c1db2e |
130145070 has 64 divisors (see below), whose sum is σ = 349090560. Its totient is φ = 30777600.
The previous prime is 130145053. The next prime is 130145077. The reversal of 130145070 is 70541031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130145077) 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, 8721 + ... + 18339.
It is an arithmetic number, because the mean of its divisors is an integer number (5454540).
Almost surely, 2130145070 is an apocalyptic number.
130145070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 130145070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174545280).
130145070 is an abundant number, since it is smaller than the sum of its proper divisors (218945490).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130145070 is a wasteful number, since it uses less digits than its factorization.
130145070 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9681.
The product of its (nonzero) digits is 420, while the sum is 21.
The square root of 130145070 is about 11408.1142175208. The cubic root of 130145070 is about 506.7680665205.
The spelling of 130145070 in words is "one hundred thirty million, one hundred forty-five thousand, seventy".
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