Base | Representation |
---|---|
bin | 1111100000110… |
… | …00001111111110 |
3 | 100001211220212010 |
4 | 13300120033332 |
5 | 231302412000 |
6 | 20524552050 |
7 | 3140011422 |
oct | 760301776 |
9 | 301756763 |
10 | 130122750 |
11 | 674a616a |
12 | 376b2626 |
13 | 20c5c614 |
14 | 133d2b82 |
15 | b654d50 |
hex | 7c183fe |
130122750 has 32 divisors (see below), whose sum is σ = 324788256. Its totient is φ = 34699200.
The previous prime is 130122749. The next prime is 130122757. The reversal of 130122750 is 57221031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130122757) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85999 + ... + 87498.
It is an arithmetic number, because the mean of its divisors is an integer number (10149633).
Almost surely, 2130122750 is an apocalyptic number.
130122750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130122750 is an abundant number, since it is smaller than the sum of its proper divisors (194665506).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130122750 is a wasteful number, since it uses less digits than its factorization.
130122750 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 173517 (or 173507 counting only the distinct ones).
The product of its (nonzero) digits is 420, while the sum is 21.
The square root of 130122750 is about 11407.1359244992. The cubic root of 130122750 is about 506.7390944667.
Adding to 130122750 its reverse (57221031), we get a palindrome (187343781).
The spelling of 130122750 in words is "one hundred thirty million, one hundred twenty-two thousand, seven hundred fifty".
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