Base | Representation |
---|---|
bin | 1100101001001000… |
… | …01100010010011100 |
3 | 122112000211211222010 |
4 | 12110210030102130 |
5 | 102400043422110 |
6 | 3041303151220 |
7 | 330125436351 |
oct | 62444142234 |
9 | 18460754863 |
10 | 6787482780 |
11 | 29733a2301 |
12 | 1395145510 |
13 | 842288400 |
14 | 48563a628 |
15 | 29ad3b020 |
hex | 19490c49c |
6787482780 has 72 divisors (see below), whose sum is σ = 20579357232. Its totient is φ = 1670762496.
The previous prime is 6787482731. The next prime is 6787482787. The reversal of 6787482780 is 872847876.
It is a self number, because there is not a number n which added to its sum of digits gives 6787482780.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6787482787) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 324549 + ... + 344828.
It is an arithmetic number, because the mean of its divisors is an integer number (285824406).
Almost surely, 26787482780 is an apocalyptic number.
6787482780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
6787482780 is an abundant number, since it is smaller than the sum of its proper divisors (13791874452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6787482780 is a wasteful number, since it uses less digits than its factorization.
6787482780 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 669415 (or 669400 counting only the distinct ones).
The product of its (nonzero) digits is 8429568, while the sum is 57.
The square root of 6787482780 is about 82386.1807586685. The cubic root of 6787482780 is about 1893.3732932148.
It can be divided in two parts, 678748 and 2780, that added together give a triangular number (681528 = T1167).
The spelling of 6787482780 in words is "six billion, seven hundred eighty-seven million, four hundred eighty-two thousand, seven hundred eighty".
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