Base | Representation |
---|---|
bin | 100011011110100100… |
… | …000110101000110001 |
3 | 10122022211002201210221 |
4 | 203132210012220301 |
5 | 1111003444312224 |
6 | 25300001053041 |
7 | 2515666326100 |
oct | 433644065061 |
9 | 118284081727 |
10 | 38093744689 |
11 | 15178a20230 |
12 | 7471627181 |
13 | 379116b740 |
14 | 1bb5356037 |
15 | ece4906e4 |
hex | 8de906a31 |
38093744689 has 96 divisors (see below), whose sum is σ = 55362303360. Its totient is φ = 25691904000.
The previous prime is 38093744681. The next prime is 38093744699. The reversal of 38093744689 is 98644739083.
It is not a de Polignac number, because 38093744689 - 23 = 38093744681 is a prime.
It is a super-2 number, since 2×380937446892 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (38093744681) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13445017 + ... + 13447849.
It is an arithmetic number, because the mean of its divisors is an integer number (576690660).
Almost surely, 238093744689 is an apocalyptic number.
It is an amenable number.
38093744689 is a deficient number, since it is larger than the sum of its proper divisors (17268558671).
38093744689 is a wasteful number, since it uses less digits than its factorization.
38093744689 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2991 (or 2984 counting only the distinct ones).
The product of its (nonzero) digits is 31352832, while the sum is 61.
The spelling of 38093744689 in words is "thirty-eight billion, ninety-three million, seven hundred forty-four thousand, six hundred eighty-nine".
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