Base | Representation |
---|---|
bin | 10111111101011110… |
… | …10100011011010000 |
3 | 1020012111102022012010 |
4 | 23332233110123100 |
5 | 202321110030023 |
6 | 5524242502520 |
7 | 633530041551 |
oct | 137657243320 |
9 | 36174368163 |
10 | 12863751888 |
11 | 5501286209 |
12 | 25b0064a40 |
13 | 12a00a9310 |
14 | 8a0620328 |
15 | 5044dc093 |
hex | 2febd46d0 |
12863751888 has 40 divisors (see below), whose sum is σ = 35787619168. Its totient is φ = 3958077312.
The previous prime is 12863751883. The next prime is 12863751889. The reversal of 12863751888 is 88815736821.
It is a super-2 number, since 2×128637518882 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12863751883) 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, 10306870 + ... + 10308117.
Almost surely, 212863751888 is an apocalyptic number.
It is an amenable number.
12863751888 is an abundant number, since it is smaller than the sum of its proper divisors (22923867280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12863751888 is a wasteful number, since it uses less digits than its factorization.
12863751888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20615011 (or 20615005 counting only the distinct ones).
The product of its digits is 5160960, while the sum is 57.
The spelling of 12863751888 in words is "twelve billion, eight hundred sixty-three million, seven hundred fifty-one thousand, eight hundred eighty-eight".
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