Base | Representation |
---|---|
bin | 1111011111111… |
… | …00101110000110 |
3 | 100001122012011211 |
4 | 13233330232012 |
5 | 231240304430 |
6 | 20522322034 |
7 | 3136031605 |
oct | 757745606 |
9 | 301565154 |
10 | 130009990 |
11 | 67429480 |
12 | 3765931a |
13 | 20c201b6 |
14 | 133a3a3c |
15 | b63172a |
hex | 7bfcb86 |
130009990 has 32 divisors (see below), whose sum is σ = 260734464. Its totient is φ = 46268640.
The previous prime is 130009933. The next prime is 130010009. The reversal of 130009990 is 99900031.
130009990 is a modest number, since divided by 9990 gives 130 as remainder.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7404 + ... + 17743.
It is an arithmetic number, because the mean of its divisors is an integer number (8147952).
Almost surely, 2130009990 is an apocalyptic number.
130009990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130009990 is an abundant number, since it is smaller than the sum of its proper divisors (130724474).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130009990 is a wasteful number, since it uses less digits than its factorization.
130009990 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25212.
The product of its (nonzero) digits is 2187, while the sum is 31.
The square root of 130009990 is about 11402.1923330560. The cubic root of 130009990 is about 506.5926778116.
The spelling of 130009990 in words is "one hundred thirty million, nine thousand, nine hundred ninety".
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