Base | Representation |
---|---|
bin | 1111011111111… |
… | …00001011011010 |
3 | 100001122002010121 |
4 | 13233330023122 |
5 | 231240222040 |
6 | 20522303454 |
7 | 3136022254 |
oct | 757741332 |
9 | 301562117 |
10 | 130007770 |
11 | 67427842 |
12 | 37657b8a |
13 | 20c1c199 |
14 | 133a2cd4 |
15 | b630c4a |
hex | 7bfc2da |
130007770 has 16 divisors (see below), whose sum is σ = 235369800. Its totient is φ = 51701824.
The previous prime is 130007767. The next prime is 130007771. The reversal of 130007770 is 77700031.
It can be written as a sum of positive squares in 4 ways, for example, as 93683041 + 36324729 = 9679^2 + 6027^2 .
130007770 is a modest number, since divided by 7770 gives 130 as remainder.
It is not an unprimeable number, because it can be changed into a prime (130007771) 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, 35845 + ... + 39304.
Almost surely, 2130007770 is an apocalyptic number.
130007770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130007770 is a deficient number, since it is larger than the sum of its proper divisors (105362030).
130007770 is a wasteful number, since it uses less digits than its factorization.
130007770 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75329.
The product of its (nonzero) digits is 1029, while the sum is 25.
The square root of 130007770 is about 11402.0949829406. The cubic root of 130007770 is about 506.5897943354.
The spelling of 130007770 in words is "one hundred thirty million, seven thousand, seven hundred seventy".
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