Base | Representation |
---|---|
bin | 10001111101010… |
… | …01010110011111 |
3 | 101111110022021102 |
4 | 20332221112133 |
5 | 302030440111 |
6 | 22540423315 |
7 | 3506263523 |
oct | 1076512637 |
9 | 344408242 |
10 | 150640031 |
11 | 7803a0a3 |
12 | 42547b3b |
13 | 25294319 |
14 | 16013d83 |
15 | d35913b |
hex | 8fa959f |
150640031 has 2 divisors, whose sum is σ = 150640032. Its totient is φ = 150640030.
The previous prime is 150640013. The next prime is 150640033. The reversal of 150640031 is 130046051.
Together with previous prime (150640013) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 150640031 - 26 = 150639967 is a prime.
It is a super-2 number, since 2×1506400312 = 45384837879361922, which contains 22 as substring.
Together with 150640033, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 150639985 and 150640012.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (150640033) by changing a digit.
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 as a sum of consecutive naturals, namely, 75320015 + 75320016.
It is an arithmetic number, because the mean of its divisors is an integer number (75320016).
Almost surely, 2150640031 is an apocalyptic number.
150640031 is a deficient number, since it is larger than the sum of its proper divisors (1).
150640031 is an equidigital number, since it uses as much as digits as its factorization.
150640031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 360, while the sum is 20.
The square root of 150640031 is about 12273.5500569314. The cubic root of 150640031 is about 532.0839172181.
Adding to 150640031 its reverse (130046051), we get a palindrome (280686082).
The spelling of 150640031 in words is "one hundred fifty million, six hundred forty thousand, thirty-one".
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