| Base | Representation |
|---|---|
| bin | 1000000111010000111… |
| … | …0001100001101100000 |
| 3 | 111022210020200020220000 |
| 4 | 2001310032030031200 |
| 5 | 4240432020034220 |
| 6 | 144011230220000 |
| 7 | 13033120340130 |
| oct | 2016416141540 |
| 9 | 438706606800 |
| 10 | 139388830560 |
| 11 | 541293a7531 |
| 12 | 23021054600 |
| 13 | 101b5085485 |
| 14 | 6a643b8ac0 |
| 15 | 395c249390 |
| hex | 207438c360 |
139388830560 has 960 divisors, whose sum is σ = 596277158400. Its totient is φ = 29955391488.
The previous prime is 139388830549. The next prime is 139388830561. The reversal of 139388830560 is 65038883931.
It is a happy number.
139388830560 is a `hidden beast` number, since 13 + 9 + 38 + 8 + 8 + 30 + 560 = 666.
It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a junction number, because it is equal to n+sod(n) for n = 139388830497 and 139388830506.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (139388830561) by changing a digit.
It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 332670031 + ... + 332670449.
It is an arithmetic number, because the mean of its divisors is an integer number (621122040).
Almost surely, 2139388830560 is an apocalyptic number.
139388830560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 139388830560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298138579200).
139388830560 is an abundant number, since it is smaller than the sum of its proper divisors (456888327840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
139388830560 is a wasteful number, since it uses less digits than its factorization.
139388830560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 665 (or 648 counting only the distinct ones).
The product of its (nonzero) digits is 3732480, while the sum is 54.
The spelling of 139388830560 in words is "one hundred thirty-nine billion, three hundred eighty-eight million, eight hundred thirty thousand, five hundred sixty".
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