Base | Representation |
---|---|
bin | 1111101010001… |
… | …11101111011010 |
3 | 100011012002001212 |
4 | 13311013233122 |
5 | 232112201400 |
6 | 21011343122 |
7 | 3153406550 |
oct | 765075732 |
9 | 304162055 |
10 | 131365850 |
11 | 68175120 |
12 | 37bb1aa2 |
13 | 212a6395 |
14 | 13637bd0 |
15 | b7ed335 |
hex | 7d47bda |
131365850 has 96 divisors (see below), whose sum is σ = 308016000. Its totient is φ = 40492800.
The previous prime is 131365841. The next prime is 131365859. The reversal of 131365850 is 58563131.
It is an interprime number because it is at equal distance from previous prime (131365841) and next prime (131365859).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (131365859) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 573536 + ... + 573764.
It is an arithmetic number, because the mean of its divisors is an integer number (3208500).
Almost surely, 2131365850 is an apocalyptic number.
131365850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131365850 is an abundant number, since it is smaller than the sum of its proper divisors (176650150).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131365850 is a wasteful number, since it uses less digits than its factorization.
131365850 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 408 (or 403 counting only the distinct ones).
The product of its (nonzero) digits is 10800, while the sum is 32.
The square root of 131365850 is about 11461.4942306839. The cubic root of 131365850 is about 508.3476576333.
The spelling of 131365850 in words is "one hundred thirty-one million, three hundred sixty-five thousand, eight hundred fifty".
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