Base | Representation |
---|---|
bin | 1111100111110… |
… | …00110000000011 |
3 | 100010120122020210 |
4 | 13303320300003 |
5 | 232021323212 |
6 | 21000405203 |
7 | 3150561354 |
oct | 763706003 |
9 | 303518223 |
10 | 131042307 |
11 | 67a74030 |
12 | 37a76803 |
13 | 211c2036 |
14 | 13591d2b |
15 | b78753c |
hex | 7cf8c03 |
131042307 has 32 divisors (see below), whose sum is σ = 203765760. Its totient is φ = 74027520.
The previous prime is 131042299. The next prime is 131042347. The reversal of 131042307 is 703240131.
It is not a de Polignac number, because 131042307 - 23 = 131042299 is a prime.
It is a zygodrome in base 2.
It is not an unprimeable number, because it can be changed into a prime (131042347) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60078 + ... + 62220.
It is an arithmetic number, because the mean of its divisors is an integer number (6367680).
Almost surely, 2131042307 is an apocalyptic number.
131042307 is a gapful number since it is divisible by the number (17) formed by its first and last digit.
131042307 is a deficient number, since it is larger than the sum of its proper divisors (72723453).
131042307 is a wasteful number, since it uses less digits than its factorization.
131042307 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2283.
The product of its (nonzero) digits is 504, while the sum is 21.
The square root of 131042307 is about 11447.3711829398. The cubic root of 131042307 is about 507.9299754163.
Adding to 131042307 its reverse (703240131), we get a palindrome (834282438).
The spelling of 131042307 in words is "one hundred thirty-one million, forty-two thousand, three hundred seven".
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