Base | Representation |
---|---|
bin | 10111110000011001… |
… | …10111010001011101 |
3 | 1012220212000012010000 |
4 | 23320030313101131 |
5 | 202110014300120 |
6 | 5505323404513 |
7 | 631025455365 |
oct | 137014672135 |
9 | 35825005100 |
10 | 12754056285 |
11 | 5455372293 |
12 | 257b383739 |
13 | 128344c689 |
14 | 88dc279a5 |
15 | 4e9a6e990 |
hex | 2f833745d |
12754056285 has 80 divisors (see below), whose sum is σ = 24448712112. Its totient is φ = 6338304000.
The previous prime is 12754056277. The next prime is 12754056311. The reversal of 12754056285 is 58265045721.
12754056285 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 4 + 0 + 562 + 85 = 666.
It can be written as a sum of positive squares in 8 ways, for example, as 247212729 + 12506843556 = 15723^2 + 111834^2 .
It is not a de Polignac number, because 12754056285 - 23 = 12754056277 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 12754056285.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 686215 + ... + 704555.
Almost surely, 212754056285 is an apocalyptic number.
12754056285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12754056285 is a deficient number, since it is larger than the sum of its proper divisors (11694655827).
12754056285 is a wasteful number, since it uses less digits than its factorization.
12754056285 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18476 (or 18467 counting only the distinct ones).
The product of its (nonzero) digits is 672000, while the sum is 45.
The spelling of 12754056285 in words is "twelve billion, seven hundred fifty-four million, fifty-six thousand, two hundred eighty-five".
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