| Base | Representation |
|---|---|
| bin | 110000000001110011… |
| … | …1110100011101011000 |
| 3 | 100212020000002010020100 |
| 4 | 1200003213310131120 |
| 5 | 3142212314011430 |
| 6 | 115214251455400 |
| 7 | 10310622260265 |
| oct | 1400347643530 |
| 9 | 325200063210 |
| 10 | 103139985240 |
| 11 | 3a817918526 |
| 12 | 17ba5457560 |
| 13 | 99591c7686 |
| 14 | 4dc60a626c |
| 15 | 2a39c30960 |
| hex | 18039f4758 |
103139985240 has 192 divisors, whose sum is σ = 339224371200. Its totient is φ = 27175424256.
The previous prime is 103139985239. The next prime is 103139985241. The reversal of 103139985240 is 42589931301.
It is a happy number.
103139985240 is a `hidden beast` number, since 1 + 0 + 3 + 1 + 39 + 98 + 524 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (103139985239) and next prime (103139985241).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103139985241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17758417 + ... + 17764223.
It is an arithmetic number, because the mean of its divisors is an integer number (1766793600).
Almost surely, 2103139985240 is an apocalyptic number.
103139985240 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 103139985240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169612185600).
103139985240 is an abundant number, since it is smaller than the sum of its proper divisors (236084385960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
103139985240 is a wasteful number, since it uses less digits than its factorization.
103139985240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6406 (or 6399 counting only the distinct ones).
The product of its (nonzero) digits is 233280, while the sum is 45.
The spelling of 103139985240 in words is "one hundred three billion, one hundred thirty-nine million, nine hundred eighty-five thousand, two hundred forty".
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