Base | Representation |
---|---|
bin | 10110100000111111… |
… | …01000000001111100 |
3 | 1011012102111020012120 |
4 | 23100133220001330 |
5 | 144223444322243 |
6 | 5315245202540 |
7 | 605356222665 |
oct | 132037500174 |
9 | 34172436176 |
10 | 12087885948 |
11 | 5143329696 |
12 | 2414260450 |
13 | 11a8426448 |
14 | 82957836c |
15 | 4ab330c83 |
hex | 2d07e807c |
12087885948 has 24 divisors (see below), whose sum is σ = 28478905728. Its totient is φ = 3990175536.
The previous prime is 12087885947. The next prime is 12087885991. The reversal of 12087885948 is 84958878021.
It is a super-2 number, since 2×120878859482 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12087885891 and 12087885900.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12087885947) 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, 4888686 + ... + 4891157.
It is an arithmetic number, because the mean of its divisors is an integer number (1186621072).
Almost surely, 212087885948 is an apocalyptic number.
It is an amenable number.
12087885948 is an abundant number, since it is smaller than the sum of its proper divisors (16391019780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12087885948 is a wasteful number, since it uses less digits than its factorization.
12087885948 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9779953 (or 9779951 counting only the distinct ones).
The product of its (nonzero) digits is 10321920, while the sum is 60.
The spelling of 12087885948 in words is "twelve billion, eighty-seven million, eight hundred eighty-five thousand, nine hundred forty-eight".
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