Base | Representation |
---|---|
bin | 11000100011001011… |
… | …11110000010000011 |
3 | 1021000112121211021121 |
4 | 30101211332002003 |
5 | 203443044133341 |
6 | 10015502333111 |
7 | 644420505100 |
oct | 142145760203 |
9 | 37015554247 |
10 | 13180067971 |
11 | 5653894164 |
12 | 2679b8a197 |
13 | 132079a7b5 |
14 | 8d063daa7 |
15 | 5221704d1 |
hex | 31197e083 |
13180067971 has 6 divisors (see below), whose sum is σ = 15331915860. Its totient is φ = 11297201076.
The previous prime is 13180067969. The next prime is 13180067983. The reversal of 13180067971 is 17976008131.
It is a happy number.
It is not a de Polignac number, because 13180067971 - 21 = 13180067969 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13180667971) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134490441 + ... + 134490538.
It is an arithmetic number, because the mean of its divisors is an integer number (2555319310).
Almost surely, 213180067971 is an apocalyptic number.
13180067971 is a deficient number, since it is larger than the sum of its proper divisors (2151847889).
13180067971 is an equidigital number, since it uses as much as digits as its factorization.
13180067971 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 268980993 (or 268980986 counting only the distinct ones).
The product of its (nonzero) digits is 63504, while the sum is 43.
The spelling of 13180067971 in words is "thirteen billion, one hundred eighty million, sixty-seven thousand, nine hundred seventy-one".
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