| Base | Representation |
|---|---|
| bin | 10000100111111… |
| … | …11011011000000 |
| 3 | 100201102012202000 |
| 4 | 20103333123000 |
| 5 | 241200130430 |
| 6 | 21501024000 |
| 7 | 3312242535 |
| oct | 1023773300 |
| 9 | 321365660 |
| 10 | 139458240 |
| 11 | 717a2049 |
| 12 | 3a855000 |
| 13 | 22b7a88c |
| 14 | 14742d8c |
| 15 | c39ae60 |
| hex | 84ff6c0 |
139458240 has 112 divisors (see below), whose sum is σ = 492008160. Its totient is φ = 37186560.
The previous prime is 139458167. The next prime is 139458247. The reversal of 139458240 is 42854931.
139458240 is a `hidden beast` number, since 1 + 39 + 4 + 582 + 40 = 666.
139458240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 139458195 and 139458204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (139458247) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570 + ... + 16710.
It is an arithmetic number, because the mean of its divisors is an integer number (4392930).
Almost surely, 2139458240 is an apocalyptic number.
139458240 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 139458240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246004080).
139458240 is an abundant number, since it is smaller than the sum of its proper divisors (352549920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
139458240 is a wasteful number, since it uses less digits than its factorization.
139458240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16167 (or 16151 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 36.
The square root of 139458240 is about 11809.2438369271. The cubic root of 139458240 is about 518.5787620808.
The spelling of 139458240 in words is "one hundred thirty-nine million, four hundred fifty-eight thousand, two hundred forty".
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