Base | Representation |
---|---|
bin | 1111100000111… |
… | …01011110001100 |
3 | 100001220000012100 |
4 | 13300131132030 |
5 | 231304103030 |
6 | 20525235100 |
7 | 3140130660 |
oct | 760353614 |
9 | 301800170 |
10 | 130144140 |
11 | 67510245 |
12 | 37702a90 |
13 | 20c69289 |
14 | 133da8a0 |
15 | b65b360 |
hex | 7c1d78c |
130144140 has 72 divisors (see below), whose sum is σ = 451170720. Its totient is φ = 29746944.
The previous prime is 130144123. The next prime is 130144193. The reversal of 130144140 is 41441031.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50385 + ... + 52904.
It is an arithmetic number, because the mean of its divisors is an integer number (6266260).
Almost surely, 2130144140 is an apocalyptic number.
130144140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
130144140 is an abundant number, since it is smaller than the sum of its proper divisors (321026580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130144140 is a wasteful number, since it uses less digits than its factorization.
130144140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 103311 (or 103306 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 130144140 is about 11408.0734569865. The cubic root of 130144140 is about 506.7668594178.
Adding to 130144140 its reverse (41441031), we get a palindrome (171585171).
The spelling of 130144140 in words is "one hundred thirty million, one hundred forty-four thousand, one hundred forty".
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