Base | Representation |
---|---|
bin | 10001100111001110110000… |
… | …00101101110000101001101 |
3 | 12002010200101001122020111002 |
4 | 20303213120011232011031 |
5 | 20034033243421024112 |
6 | 214212533503110045 |
7 | 11105150563436132 |
oct | 1063473005560515 |
9 | 162120331566432 |
10 | 38731345486157 |
11 | 11382964891645 |
12 | 44164892a2325 |
13 | 187c47253808c |
14 | 97c86dd3a589 |
15 | 472757ae81c2 |
hex | 2339d816e14d |
38731345486157 has 32 divisors (see below), whose sum is σ = 40699142838144. Its totient is φ = 36823975372800.
The previous prime is 38731345486063. The next prime is 38731345486177. The reversal of 38731345486157 is 75168454313783.
It is not a de Polignac number, because 38731345486157 - 212 = 38731345482061 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 38731345486093 and 38731345486102.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38731345486177) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 765008078 + ... + 765058704.
It is an arithmetic number, because the mean of its divisors is an integer number (1271848213692).
Almost surely, 238731345486157 is an apocalyptic number.
It is an amenable number.
38731345486157 is a deficient number, since it is larger than the sum of its proper divisors (1967797351987).
38731345486157 is a wasteful number, since it uses less digits than its factorization.
38731345486157 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53549.
The product of its digits is 203212800, while the sum is 65.
The spelling of 38731345486157 in words is "thirty-eight trillion, seven hundred thirty-one billion, three hundred forty-five million, four hundred eighty-six thousand, one hundred fifty-seven".
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