Base | Representation |
---|---|
bin | 100011101001101100… |
… | …111011101110011101 |
3 | 10122210211201102000002 |
4 | 203221230323232131 |
5 | 1111344313434134 |
6 | 25330314144045 |
7 | 2523425543042 |
oct | 435154735635 |
9 | 118724642002 |
10 | 38280608669 |
11 | 15264450976 |
12 | 7504122025 |
13 | 37c0aa6944 |
14 | 1bd20b91c9 |
15 | ee0aa287e |
hex | 8e9b3bb9d |
38280608669 has 2 divisors, whose sum is σ = 38280608670. Its totient is φ = 38280608668.
The previous prime is 38280608657. The next prime is 38280608689. The reversal of 38280608669 is 96680608283.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 32621055769 + 5659552900 = 180613^2 + 75230^2 .
It is a cyclic number.
It is not a de Polignac number, because 38280608669 - 224 = 38263831453 is a prime.
It is a super-2 number, since 2×382806086692 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38280608609) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19140304334 + 19140304335.
It is an arithmetic number, because the mean of its divisors is an integer number (19140304335).
Almost surely, 238280608669 is an apocalyptic number.
It is an amenable number.
38280608669 is a deficient number, since it is larger than the sum of its proper divisors (1).
38280608669 is an equidigital number, since it uses as much as digits as its factorization.
38280608669 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 5971968, while the sum is 56.
The spelling of 38280608669 in words is "thirty-eight billion, two hundred eighty million, six hundred eight thousand, six hundred sixty-nine".
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