Base | Representation |
---|---|
bin | 101010101001101… |
… | …0011000011010011 |
3 | 10200201220112111101 |
4 | 1111103103003103 |
5 | 10412331402011 |
6 | 354001525231 |
7 | 50315223505 |
oct | 12523230323 |
9 | 3621815441 |
10 | 1431122131 |
11 | 67491626a |
12 | 33b343817 |
13 | 19a65743a |
14 | d80d3d75 |
15 | 859912c1 |
hex | 554d30d3 |
1431122131 has 8 divisors (see below), whose sum is σ = 1482256800. Its totient is φ = 1381749544.
The previous prime is 1431122093. The next prime is 1431122183. The reversal of 1431122131 is 1312211341.
It is not a de Polignac number, because 1431122131 - 29 = 1431121619 is a prime.
It is a super-2 number, since 2×14311221312 = 4096221107675962322, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1431122099 and 1431122108.
It is not an unprimeable number, because it can be changed into a prime (1431122531) 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, 4951 + ... + 53728.
It is an arithmetic number, because the mean of its divisors is an integer number (185282100).
Almost surely, 21431122131 is an apocalyptic number.
1431122131 is a deficient number, since it is larger than the sum of its proper divisors (51134669).
1431122131 is an frugal number, since it uses more digits than its factorization.
1431122131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58766 (or 58708 counting only the distinct ones).
The product of its digits is 144, while the sum is 19.
The square root of 1431122131 is about 37830.1748740341. The cubic root of 1431122131 is about 1126.9177839802.
Adding to 1431122131 its reverse (1312211341), we get a palindrome (2743333472).
The spelling of 1431122131 in words is "one billion, four hundred thirty-one million, one hundred twenty-two thousand, one hundred thirty-one".
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