Base | Representation |
---|---|
bin | 1011011111010011110000… |
… | …1101011111100001100010 |
3 | 1122201122201021022211110101 |
4 | 2313310330031133201202 |
5 | 3123432334300044430 |
6 | 42511143340453014 |
7 | 2442445230466510 |
oct | 267647415374142 |
9 | 48648637284411 |
10 | 12632508987490 |
11 | 4030464aa3907 |
12 | 150032184a16a |
13 | 70831846a362 |
14 | 3195b95bb4b0 |
15 | 16d901cbadca |
hex | b7d3c35f862 |
12632508987490 has 128 divisors (see below), whose sum is σ = 27561625781760. Its totient is φ = 4069547937792.
The previous prime is 12632508987431. The next prime is 12632508987491. The reversal of 12632508987490 is 9478980523621.
It is not an unprimeable number, because it can be changed into a prime (12632508987491) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2273257792 + ... + 2273263348.
It is an arithmetic number, because the mean of its divisors is an integer number (215325201420).
It is a 1-persistent number, because it is pandigital, but 2⋅12632508987490 = 25265017974980 is not.
Almost surely, 212632508987490 is an apocalyptic number.
12632508987490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12632508987490 is an abundant number, since it is smaller than the sum of its proper divisors (14929116794270).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12632508987490 is a wasteful number, since it uses less digits than its factorization.
12632508987490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8444.
The product of its (nonzero) digits is 52254720, while the sum is 64.
The spelling of 12632508987490 in words is "twelve trillion, six hundred thirty-two billion, five hundred eight million, nine hundred eighty-seven thousand, four hundred ninety".
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