Base | Representation |
---|---|
bin | 1111000110100… |
… | …01101110110100 |
3 | 22211101102111211 |
4 | 13203101232310 |
5 | 224413010210 |
6 | 20323211204 |
7 | 3065555203 |
oct | 743215664 |
9 | 284342454 |
10 | 126688180 |
11 | 6556a783 |
12 | 36516b04 |
13 | 20329228 |
14 | 12b7b23a |
15 | b1c738a |
hex | 78d1bb4 |
126688180 has 24 divisors (see below), whose sum is σ = 266611968. Its totient is φ = 50567328.
The previous prime is 126688141. The next prime is 126688183. The reversal of 126688180 is 81886621.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (126688183) 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, 3237 + ... + 16243.
It is an arithmetic number, because the mean of its divisors is an integer number (11108832).
Almost surely, 2126688180 is an apocalyptic number.
126688180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
126688180 is an abundant number, since it is smaller than the sum of its proper divisors (139923788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
126688180 is a wasteful number, since it uses less digits than its factorization.
126688180 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13503 (or 13501 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 40.
The square root of 126688180 is about 11255.5843917586. The cubic root of 126688180 is about 502.2408488565.
The spelling of 126688180 in words is "one hundred twenty-six million, six hundred eighty-eight thousand, one hundred eighty".
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