Base | Representation |
---|---|
bin | 1110100101100001… |
… | …10101000111101001 |
3 | 202012202101011100210 |
4 | 13102300311013221 |
5 | 112014212430040 |
6 | 3333021051333 |
7 | 365026154436 |
oct | 72260650751 |
9 | 22182334323 |
10 | 7830983145 |
11 | 33594275a7 |
12 | 16266b6b49 |
13 | 97a51644b |
14 | 54406cb8d |
15 | 30c761480 |
hex | 1d2c351e9 |
7830983145 has 16 divisors (see below), whose sum is σ = 12658746240. Its totient is φ = 4133466624.
The previous prime is 7830983143. The next prime is 7830983159. The reversal of 7830983145 is 5413890387.
It is not a de Polignac number, because 7830983145 - 21 = 7830983143 is a prime.
It is a super-2 number, since 2×78309831452 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 7830983094 and 7830983103.
It is not an unprimeable number, because it can be changed into a prime (7830983143) by changing a digit.
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, 2689605 + ... + 2692514.
It is an arithmetic number, because the mean of its divisors is an integer number (791171640).
Almost surely, 27830983145 is an apocalyptic number.
It is an amenable number.
7830983145 is a deficient number, since it is larger than the sum of its proper divisors (4827763095).
7830983145 is a wasteful number, since it uses less digits than its factorization.
7830983145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5382224.
The product of its (nonzero) digits is 725760, while the sum is 48.
The square root of 7830983145 is about 88492.8423376716. The cubic root of 7830983145 is about 1985.8148912862.
The spelling of 7830983145 in words is "seven billion, eight hundred thirty million, nine hundred eighty-three thousand, one hundred forty-five".
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