Base | Representation |
---|---|
bin | 10001101110001110100010… |
… | …11110100010000101011000 |
3 | 12002222122220110021000111000 |
4 | 20313013101132202011120 |
5 | 20102003122143444210 |
6 | 214515213120305000 |
7 | 11131421235260565 |
oct | 1067072136420530 |
9 | 162878813230430 |
10 | 38971752718680 |
11 | 11465911466691 |
12 | 4454ba1172160 |
13 | 18990360b10a2 |
14 | 98a35871386c |
15 | 478b28695ac0 |
hex | 2371d17a2158 |
38971752718680 has 128 divisors (see below), whose sum is σ = 129907435838400. Its totient is φ = 10392339916800.
The previous prime is 38971752718597. The next prime is 38971752718697. The reversal of 38971752718680 is 8681725717983.
It is a happy number.
38971752718680 is a `hidden beast` number, since 3 + 8 + 9 + 7 + 1 + 7 + 527 + 18 + 6 + 80 = 666.
It is a Harshad number since it is a multiple of its sum of digits (72).
It is a junction number, because it is equal to n+sod(n) for n = 38971752718599 and 38971752718608.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116214450 + ... + 116549310.
Almost surely, 238971752718680 is an apocalyptic number.
38971752718680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
38971752718680 is an abundant number, since it is smaller than the sum of its proper divisors (90935683119720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38971752718680 is a wasteful number, since it uses less digits than its factorization.
38971752718680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 442642 (or 442632 counting only the distinct ones).
The product of its (nonzero) digits is 284497920, while the sum is 72.
The spelling of 38971752718680 in words is "thirty-eight trillion, nine hundred seventy-one billion, seven hundred fifty-two million, seven hundred eighteen thousand, six hundred eighty".
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