Base | Representation |
---|---|
bin | 100011100111001010… |
… | …111001101011010001 |
3 | 10122200212210102021010 |
4 | 203213022321223101 |
5 | 1111302430223240 |
6 | 25322155521133 |
7 | 2522401524105 |
oct | 434712715321 |
9 | 118625712233 |
10 | 38238132945 |
11 | 1524247a271 |
12 | 74b1a591a9 |
13 | 37b505428c |
14 | 1bca5bd905 |
15 | edbeb2280 |
hex | 8e72b9ad1 |
38238132945 has 16 divisors (see below), whose sum is σ = 61241077440. Its totient is φ = 20373649344.
The previous prime is 38238132923. The next prime is 38238133013. The reversal of 38238132945 is 54923183283.
It is not a de Polignac number, because 38238132945 - 27 = 38238132817 is a prime.
It is a super-2 number, since 2×382381329452 (a number of 22 digits) contains 22 as substring.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 38238132894 and 38238132903.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 1235554 + ... + 1266123.
It is an arithmetic number, because the mean of its divisors is an integer number (3827567340).
Almost surely, 238238132945 is an apocalyptic number.
It is an amenable number.
38238132945 is a deficient number, since it is larger than the sum of its proper divisors (23002944495).
38238132945 is a wasteful number, since it uses less digits than its factorization.
38238132945 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2502704.
The product of its digits is 1244160, while the sum is 48.
The spelling of 38238132945 in words is "thirty-eight billion, two hundred thirty-eight million, one hundred thirty-two thousand, nine hundred forty-five".
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