Base | Representation |
---|---|
bin | 1111101010010… |
… | …10000100110111 |
3 | 100011012120012010 |
4 | 13311022010313 |
5 | 232113003130 |
6 | 21011455303 |
7 | 3153446463 |
oct | 765120467 |
9 | 304176163 |
10 | 131375415 |
11 | 68181326 |
12 | 37bb7533 |
13 | 212aa842 |
14 | 1363b4a3 |
15 | b8010b0 |
hex | 7d4a137 |
131375415 has 8 divisors (see below), whose sum is σ = 210200688. Its totient is φ = 70066880.
The previous prime is 131375401. The next prime is 131375417. The reversal of 131375415 is 514573131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131375415 - 25 = 131375383 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131375417) 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, 4379166 + ... + 4379195.
It is an arithmetic number, because the mean of its divisors is an integer number (26275086).
Almost surely, 2131375415 is an apocalyptic number.
131375415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
131375415 is a deficient number, since it is larger than the sum of its proper divisors (78825273).
131375415 is an equidigital number, since it uses as much as digits as its factorization.
131375415 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8758369.
The product of its digits is 6300, while the sum is 30.
The square root of 131375415 is about 11461.9114897996. The cubic root of 131375415 is about 508.3599952572.
The spelling of 131375415 in words is "one hundred thirty-one million, three hundred seventy-five thousand, four hundred fifteen".
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