Base | Representation |
---|---|
bin | 1111100000101… |
… | …11111001000011 |
3 | 100001211211211210 |
4 | 13300113321003 |
5 | 231302340113 |
6 | 20524541203 |
7 | 3140004225 |
oct | 760277103 |
9 | 301754753 |
10 | 130121283 |
11 | 674a5056 |
12 | 376b1803 |
13 | 20c5ba56 |
14 | 133d2415 |
15 | b6546c3 |
hex | 7c17e43 |
130121283 has 4 divisors (see below), whose sum is σ = 173495048. Its totient is φ = 86747520.
The previous prime is 130121227. The next prime is 130121287. The reversal of 130121283 is 382121031.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 130121283 - 218 = 129859139 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130121287) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21686878 + ... + 21686883.
It is an arithmetic number, because the mean of its divisors is an integer number (43373762).
Almost surely, 2130121283 is an apocalyptic number.
130121283 is a deficient number, since it is larger than the sum of its proper divisors (43373765).
130121283 is an equidigital number, since it uses as much as digits as its factorization.
130121283 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43373764.
The product of its (nonzero) digits is 288, while the sum is 21.
The square root of 130121283 is about 11407.0716224630. The cubic root of 130121283 is about 506.7371901391.
The spelling of 130121283 in words is "one hundred thirty million, one hundred twenty-one thousand, two hundred eighty-three".
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