Base | Representation |
---|---|
bin | 1110110110110010… |
… | …10110111000110001 |
3 | 202120211220212221220 |
4 | 13123121112320301 |
5 | 112313302344240 |
6 | 3355233335253 |
7 | 401435251644 |
oct | 73331267061 |
9 | 22524825856 |
10 | 7975824945 |
11 | 3423166370 |
12 | 1667107529 |
13 | 9a152a55a |
14 | 5593b3a5b |
15 | 31a3225d0 |
hex | 1db656e31 |
7975824945 has 32 divisors (see below), whose sum is σ = 13976976384. Its totient is φ = 3851640000.
The previous prime is 7975824919. The next prime is 7975824949. The reversal of 7975824945 is 5494285797.
It is not a de Polignac number, because 7975824945 - 26 = 7975824881 is a prime.
It is a super-2 number, since 2×79758249452 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (7975824949) 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, 54877 + ... + 137706.
It is an arithmetic number, because the mean of its divisors is an integer number (436780512).
Almost surely, 27975824945 is an apocalyptic number.
It is an amenable number.
7975824945 is a deficient number, since it is larger than the sum of its proper divisors (6001151439).
7975824945 is a wasteful number, since it uses less digits than its factorization.
7975824945 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 192853.
The product of its digits is 25401600, while the sum is 60.
The square root of 7975824945 is about 89307.4741832955. The cubic root of 7975824945 is about 1997.9833793874.
The spelling of 7975824945 in words is "seven billion, nine hundred seventy-five million, eight hundred twenty-four thousand, nine hundred forty-five".
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