Base | Representation |
---|---|
bin | 1110110111011001… |
… | …01111001101111111 |
3 | 202121012110222221210 |
4 | 13123230233031333 |
5 | 112321102432333 |
6 | 3355534255503 |
7 | 401526401415 |
oct | 73354571577 |
9 | 22535428853 |
10 | 7980905343 |
11 | 3426016344 |
12 | 1668957593 |
13 | 9a25b8ac8 |
14 | 559d372b5 |
15 | 31a9c7a63 |
hex | 1dbb2f37f |
7980905343 has 8 divisors (see below), whose sum is σ = 10642243456. Its totient is φ = 5320085400.
The previous prime is 7980905297. The next prime is 7980905363. The reversal of 7980905343 is 3435090897.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 7980905343 - 210 = 7980904319 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 7980905292 and 7980905301.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7980905363) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92053 + ... + 156318.
It is an arithmetic number, because the mean of its divisors is an integer number (1330280432).
Almost surely, 27980905343 is an apocalyptic number.
7980905343 is a deficient number, since it is larger than the sum of its proper divisors (2661338113).
7980905343 is a wasteful number, since it uses less digits than its factorization.
7980905343 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 259085.
The product of its (nonzero) digits is 816480, while the sum is 48.
The square root of 7980905343 is about 89335.9129521829. The cubic root of 7980905343 is about 1998.4075109091.
The spelling of 7980905343 in words is "seven billion, nine hundred eighty million, nine hundred five thousand, three hundred forty-three".
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