Base | Representation |
---|---|
bin | 1011000101101111010… |
… | …00010110100011001001 |
3 | 1100102112012002102222202 |
4 | 11202313220112203021 |
5 | 22220331202240242 |
6 | 451014005125545 |
7 | 36346321654064 |
oct | 5426750264311 |
9 | 1312465072882 |
10 | 381037930697 |
11 | 137662a84046 |
12 | 61a209b98b5 |
13 | 29c15cc15a8 |
14 | 14629a9d8db |
15 | 9da1d52932 |
hex | 58b7a168c9 |
381037930697 has 2 divisors, whose sum is σ = 381037930698. Its totient is φ = 381037930696.
The previous prime is 381037930621. The next prime is 381037930699. The reversal of 381037930697 is 796039730183.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 216279873481 + 164758057216 = 465059^2 + 405904^2 .
It is a cyclic number.
It is not a de Polignac number, because 381037930697 - 216 = 381037865161 is a prime.
Together with 381037930699, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (381037930699) 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 as a sum of consecutive naturals, namely, 190518965348 + 190518965349.
It is an arithmetic number, because the mean of its divisors is an integer number (190518965349).
Almost surely, 2381037930697 is an apocalyptic number.
It is an amenable number.
381037930697 is a deficient number, since it is larger than the sum of its proper divisors (1).
381037930697 is an equidigital number, since it uses as much as digits as its factorization.
381037930697 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5143824, while the sum is 56.
The spelling of 381037930697 in words is "three hundred eighty-one billion, thirty-seven million, nine hundred thirty thousand, six hundred ninety-seven".
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