Base | Representation |
---|---|
bin | 10111010001010101… |
… | …10111010010111000 |
3 | 1012020200200210211120 |
4 | 23220222313102320 |
5 | 201041313011430 |
6 | 5423414425240 |
7 | 621412605135 |
oct | 135052672270 |
9 | 35220623746 |
10 | 12493485240 |
11 | 5331279415 |
12 | 2508062220 |
13 | 1241478522 |
14 | 86739958c |
15 | 4d1c4d610 |
hex | 2e8ab74b8 |
12493485240 has 32 divisors (see below), whose sum is σ = 37480456080. Its totient is φ = 3331596032.
The previous prime is 12493485211. The next prime is 12493485247. The reversal of 12493485240 is 4258439421.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 12493485192 and 12493485201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12493485247) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52056069 + ... + 52056308.
Almost surely, 212493485240 is an apocalyptic number.
12493485240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12493485240 is an abundant number, since it is smaller than the sum of its proper divisors (24986970840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12493485240 is a wasteful number, since it uses less digits than its factorization.
12493485240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 104112391 (or 104112387 counting only the distinct ones).
The product of its (nonzero) digits is 276480, while the sum is 42.
The spelling of 12493485240 in words is "twelve billion, four hundred ninety-three million, four hundred eighty-five thousand, two hundred forty".
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