Base | Representation |
---|---|
bin | 111111100001111… |
… | …1011001001011011 |
3 | 12111120020100212000 |
4 | 1333003323021123 |
5 | 13331211011011 |
6 | 551310252043 |
7 | 103553310141 |
oct | 17703731133 |
9 | 5446210760 |
10 | 2131735131 |
11 | 9a4344179 |
12 | 4b5ab7023 |
13 | 27c84c846 |
14 | 16318b591 |
15 | c7235356 |
hex | 7f0fb25b |
2131735131 has 32 divisors (see below), whose sum is σ = 3284659200. Its totient is φ = 1365193440.
The previous prime is 2131735129. The next prime is 2131735141. The reversal of 2131735131 is 1315371312.
It is a happy number.
It is not a de Polignac number, because 2131735131 - 21 = 2131735129 is a prime.
It is a super-2 number, since 2×21317351312 = 9088589337479174322, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 2131735095 and 2131735104.
It is not an unprimeable number, because it can be changed into a prime (2131735141) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65416 + ... + 92426.
It is an arithmetic number, because the mean of its divisors is an integer number (102645600).
Almost surely, 22131735131 is an apocalyptic number.
2131735131 is a deficient number, since it is larger than the sum of its proper divisors (1152924069).
2131735131 is a wasteful number, since it uses less digits than its factorization.
2131735131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27136 (or 27130 counting only the distinct ones).
The product of its digits is 1890, while the sum is 27.
The square root of 2131735131 is about 46170.7172458908. The cubic root of 2131735131 is about 1286.9976309583.
The spelling of 2131735131 in words is "two billion, one hundred thirty-one million, seven hundred thirty-five thousand, one hundred thirty-one".
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