Base | Representation |
---|---|
bin | 1111101010101… |
… | …01101100111111 |
3 | 100011021222111222 |
4 | 13311111230333 |
5 | 232121014124 |
6 | 21012503555 |
7 | 3154035356 |
oct | 765255477 |
9 | 304258458 |
10 | 131423039 |
11 | 68204090 |
12 | 3801abbb |
13 | 212c6417 |
14 | 1365099d |
15 | b81025e |
hex | 7d55b3f |
131423039 has 12 divisors (see below), whose sum is σ = 152303928. Its totient is φ = 112444800.
The previous prime is 131423027. The next prime is 131423051. The reversal of 131423039 is 930324131.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (131423027) and next prime (131423051).
It is not a de Polignac number, because 131423039 - 24 = 131423023 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131422999 and 131423017.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131423009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17492 + ... + 23849.
It is an arithmetic number, because the mean of its divisors is an integer number (12691994).
Almost surely, 2131423039 is an apocalyptic number.
131423039 is a deficient number, since it is larger than the sum of its proper divisors (20880889).
131423039 is a wasteful number, since it uses less digits than its factorization.
131423039 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41386 (or 41369 counting only the distinct ones).
The product of its (nonzero) digits is 1944, while the sum is 26.
The square root of 131423039 is about 11463.9887909924. The cubic root of 131423039 is about 508.4214152004.
The spelling of 131423039 in words is "one hundred thirty-one million, four hundred twenty-three thousand, thirty-nine".
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