Base | Representation |
---|---|
bin | 1111100111110… |
… | …00101110100110 |
3 | 100010120122010100 |
4 | 13303320232212 |
5 | 232021322324 |
6 | 21000404530 |
7 | 3150561162 |
oct | 763705646 |
9 | 303518110 |
10 | 131042214 |
11 | 67a73a56 |
12 | 37a76746 |
13 | 211c1c94 |
14 | 13591ca2 |
15 | b7874c9 |
hex | 7cf8ba6 |
131042214 has 24 divisors (see below), whose sum is σ = 284324040. Its totient is φ = 43619328.
The previous prime is 131042209. The next prime is 131042231. The reversal of 131042214 is 412240131.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9109 + ... + 18575.
It is an arithmetic number, because the mean of its divisors is an integer number (11846835).
Almost surely, 2131042214 is an apocalyptic number.
131042214 is an abundant number, since it is smaller than the sum of its proper divisors (153281826).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131042214 is a wasteful number, since it uses less digits than its factorization.
131042214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10244 (or 10241 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 131042214 is about 11447.3671208711. The cubic root of 131042214 is about 507.9298552579.
Adding to 131042214 its reverse (412240131), we get a palindrome (543282345).
The spelling of 131042214 in words is "one hundred thirty-one million, forty-two thousand, two hundred fourteen".
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