Base | Representation |
---|---|
bin | 1111100101001… |
… | …10011001101000 |
3 | 100002221111112221 |
4 | 13302212121220 |
5 | 231430030000 |
6 | 20545243424 |
7 | 3144655066 |
oct | 762463150 |
9 | 302844487 |
10 | 130705000 |
11 | 67863668 |
12 | 37933574 |
13 | 2110464a |
14 | 13505036 |
15 | b71c61a |
hex | 7ca6668 |
130705000 has 40 divisors (see below), whose sum is σ = 306253530. Its totient is φ = 52280000.
The previous prime is 130704989. The next prime is 130705013. The reversal of 130705000 is 507031.
It can be written as a sum of positive squares in 5 ways, for example, as 5846724 + 124858276 = 2418^2 + 11174^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is an unprimeable number.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8071 + ... + 18070.
Almost surely, 2130705000 is an apocalyptic number.
130705000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
130705000 is an abundant number, since it is smaller than the sum of its proper divisors (175548530).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130705000 is an equidigital number, since it uses as much as digits as its factorization.
130705000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26167 (or 26148 counting only the distinct ones).
The product of its (nonzero) digits is 105, while the sum is 16.
The square root of 130705000 is about 11432.6287440816. The cubic root of 130705000 is about 507.4937917333.
The spelling of 130705000 in words is "one hundred thirty million, seven hundred five thousand".
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