Base | Representation |
---|---|
bin | 10110100110001100… |
… | …10011100111111011 |
3 | 1011022110201010202000 |
4 | 23103012103213323 |
5 | 144321141033121 |
6 | 5323445512043 |
7 | 606426506046 |
oct | 132306234773 |
9 | 34273633660 |
10 | 12131580411 |
11 | 5165a62a15 |
12 | 2426a12623 |
13 | 11b44b4762 |
14 | 8312adc5d |
15 | 4b00b2526 |
hex | 2d31939fb |
12131580411 has 64 divisors (see below), whose sum is σ = 19269888000. Its totient is φ = 7529034240.
The previous prime is 12131580403. The next prime is 12131580421. The reversal of 12131580411 is 11408513121.
12131580411 is a `hidden beast` number, since 12 + 1 + 31 + 580 + 41 + 1 = 666.
It is not a de Polignac number, because 12131580411 - 23 = 12131580403 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (12131580421) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2657571 + ... + 2662131.
It is an arithmetic number, because the mean of its divisors is an integer number (301092000).
Almost surely, 212131580411 is an apocalyptic number.
12131580411 is a deficient number, since it is larger than the sum of its proper divisors (7138307589).
12131580411 is a wasteful number, since it uses less digits than its factorization.
12131580411 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4721 (or 4715 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 27.
The spelling of 12131580411 in words is "twelve billion, one hundred thirty-one million, five hundred eighty thousand, four hundred eleven".
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