Base | Representation |
---|---|
bin | 1111101000011… |
… | …00001111010010 |
3 | 100010201200202012 |
4 | 13310030033102 |
5 | 232031402010 |
6 | 21002222522 |
7 | 3151343156 |
oct | 764141722 |
9 | 303650665 |
10 | 131122130 |
11 | 68018aa7 |
12 | 37ab4a42 |
13 | 2121c479 |
14 | 135b3066 |
15 | b7a1005 |
hex | 7d0c3d2 |
131122130 has 16 divisors (see below), whose sum is σ = 236174400. Its totient is φ = 52414512.
The previous prime is 131122129. The next prime is 131122133. The reversal of 131122130 is 31221131.
It is not an unprimeable number, because it can be changed into a prime (131122133) 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, 16571 + ... + 23169.
It is an arithmetic number, because the mean of its divisors is an integer number (14760900).
Almost surely, 2131122130 is an apocalyptic number.
131122130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131122130 is a deficient number, since it is larger than the sum of its proper divisors (105052270).
131122130 is a wasteful number, since it uses less digits than its factorization.
131122130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8593.
The product of its (nonzero) digits is 36, while the sum is 14.
The square root of 131122130 is about 11450.8571731552. The cubic root of 131122130 is about 508.0330878277.
Adding to 131122130 its reverse (31221131), we get a palindrome (162343261).
Subtracting from 131122130 its reverse (31221131), we obtain a palindrome (99900999).
The spelling of 131122130 in words is "one hundred thirty-one million, one hundred twenty-two thousand, one hundred thirty".
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