Base | Representation |
---|---|
bin | 1100110111010111… |
… | …11100101011000001 |
3 | 122211100122202002000 |
4 | 12123223330223001 |
5 | 103121140101411 |
6 | 3101212014213 |
7 | 333106106235 |
oct | 63353745301 |
9 | 18740582060 |
10 | 6906956481 |
11 | 2a248846a7 |
12 | 1409161369 |
13 | 860c598c9 |
14 | 49745a5c5 |
15 | 2a658a956 |
hex | 19bafcac1 |
6906956481 has 32 divisors (see below), whose sum is σ = 10417766400. Its totient is φ = 4521459600.
The previous prime is 6906956461. The next prime is 6906956509. The reversal of 6906956481 is 1846596096.
It is a happy number.
It is a de Polignac number, because none of the positive numbers 2k-6906956481 is a prime.
It is a super-2 number, since 2×69069564812 = 95412095660855806722, which contains 22 as substring.
It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (6906956461) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 1831660 + ... + 1835426.
It is an arithmetic number, because the mean of its divisors is an integer number (325555200).
Almost surely, 26906956481 is an apocalyptic number.
It is an amenable number.
6906956481 is a deficient number, since it is larger than the sum of its proper divisors (3510809919).
6906956481 is a wasteful number, since it uses less digits than its factorization.
6906956481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4986 (or 4980 counting only the distinct ones).
The product of its (nonzero) digits is 2799360, while the sum is 54.
The square root of 6906956481 is about 83108.1011755172. The cubic root of 6906956481 is about 1904.4178343851.
The spelling of 6906956481 in words is "six billion, nine hundred six million, nine hundred fifty-six thousand, four hundred eighty-one".
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