Base | Representation |
---|---|
bin | 1111100110110… |
… | …00111100000101 |
3 | 100010100000111210 |
4 | 13303120330011 |
5 | 232003141010 |
6 | 20553522033 |
7 | 3146506440 |
oct | 763307405 |
9 | 303300453 |
10 | 130912005 |
11 | 67995144 |
12 | 37a13319 |
13 | 21177933 |
14 | 1355a657 |
15 | b75db20 |
hex | 7cd8f05 |
130912005 has 16 divisors (see below), whose sum is σ = 239382144. Its totient is φ = 59845440.
The previous prime is 130911997. The next prime is 130912013. The reversal of 130912005 is 500219031.
It is an interprime number because it is at equal distance from previous prime (130911997) and next prime (130912013).
It is not a de Polignac number, because 130912005 - 23 = 130911997 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a Curzon number.
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, 623286 + ... + 623495.
It is an arithmetic number, because the mean of its divisors is an integer number (14961384).
Almost surely, 2130912005 is an apocalyptic number.
130912005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130912005 is a deficient number, since it is larger than the sum of its proper divisors (108470139).
130912005 is a wasteful number, since it uses less digits than its factorization.
130912005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1246796.
The product of its (nonzero) digits is 270, while the sum is 21.
The square root of 130912005 is about 11441.6784170855. The cubic root of 130912005 is about 507.7615660883.
The spelling of 130912005 in words is "one hundred thirty million, nine hundred twelve thousand, five".
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