Base | Representation |
---|---|
bin | 100100101011001111… |
… | …001010010110000001 |
3 | 10202122110121101020001 |
4 | 210223033022112001 |
5 | 1121122301203411 |
6 | 30031352120001 |
7 | 2562606221401 |
oct | 445317122601 |
9 | 122573541201 |
10 | 39380100481 |
11 | 15779049397 |
12 | 7770396001 |
13 | 393780a207 |
14 | 1c98124801 |
15 | 1057387dc1 |
hex | 92b3ca581 |
39380100481 has 2 divisors, whose sum is σ = 39380100482. Its totient is φ = 39380100480.
The previous prime is 39380100469. The next prime is 39380100497. The reversal of 39380100481 is 18400108393.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 25127322256 + 14252778225 = 158516^2 + 119385^2 .
It is an emirp because it is prime and its reverse (18400108393) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-39380100481 is a prime.
It is a super-2 number, since 2×393801004812 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 39380100481.
It is not a weakly prime, because it can be changed into another prime (39380130481) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19690050240 + 19690050241.
It is an arithmetic number, because the mean of its divisors is an integer number (19690050241).
Almost surely, 239380100481 is an apocalyptic number.
It is an amenable number.
39380100481 is a deficient number, since it is larger than the sum of its proper divisors (1).
39380100481 is an equidigital number, since it uses as much as digits as its factorization.
39380100481 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 20736, while the sum is 37.
The spelling of 39380100481 in words is "thirty-nine billion, three hundred eighty million, one hundred thousand, four hundred eighty-one".
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