| Base | Representation |
|---|---|
| bin | 10111010111100000… |
| … | …00101111011100000 |
| 3 | 1012101021222120002000 |
| 4 | 23223300011323200 |
| 5 | 201143032000202 |
| 6 | 5432502524000 |
| 7 | 622611222552 |
| oct | 135360057340 |
| 9 | 35337876060 |
| 10 | 12545187552 |
| 11 | 53584820a7 |
| 12 | 2521436600 |
| 13 | 124c0ab701 |
| 14 | 8701b74d2 |
| 15 | 4d656291c |
| hex | 2ebc05ee0 |
12545187552 has 96 divisors (see below), whose sum is σ = 36629832960. Its totient is φ = 4177192320.
The previous prime is 12545187547. The next prime is 12545187563. The reversal of 12545187552 is 25578154521.
It is a happy number.
12545187552 is a `hidden beast` number, since 12 + 5 + 4 + 5 + 1 + 87 + 552 = 666.
12545187552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (96).
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 12545187498 and 12545187507.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841927 + ... + 856697.
It is an arithmetic number, because the mean of its divisors is an integer number (381560760).
Almost surely, 212545187552 is an apocalyptic number.
12545187552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12545187552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18314916480).
12545187552 is an abundant number, since it is smaller than the sum of its proper divisors (24084645408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12545187552 is a wasteful number, since it uses less digits than its factorization.
12545187552 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15773 (or 15759 counting only the distinct ones).
The product of its digits is 560000, while the sum is 45.
The spelling of 12545187552 in words is "twelve billion, five hundred forty-five million, one hundred eighty-seven thousand, five hundred fifty-two".
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