Base | Representation |
---|---|
bin | 1011101010011111… |
… | …1100111000011001 |
3 | 22002012121001210020 |
4 | 2322213330320121 |
5 | 22403021111121 |
6 | 1234404541053 |
7 | 140406234252 |
oct | 27247747031 |
9 | 8065531706 |
10 | 3131035161 |
11 | 136742a071 |
12 | 7346b1789 |
13 | 3ab8a3237 |
14 | 219b95b29 |
15 | 134d291c6 |
hex | ba9fce19 |
3131035161 has 16 divisors (see below), whose sum is σ = 4222620864. Its totient is φ = 2063453184.
The previous prime is 3131035157. The next prime is 3131035181. The reversal of 3131035161 is 1615301313.
It is not a de Polignac number, because 3131035161 - 22 = 3131035157 is a prime.
It is a super-3 number, since 3×31310351613 (a number of 29 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (3131035181) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266926 + ... + 278408.
It is an arithmetic number, because the mean of its divisors is an integer number (263913804).
Almost surely, 23131035161 is an apocalyptic number.
It is an amenable number.
3131035161 is a deficient number, since it is larger than the sum of its proper divisors (1091585703).
3131035161 is a wasteful number, since it uses less digits than its factorization.
3131035161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12520.
The product of its (nonzero) digits is 810, while the sum is 24.
The square root of 3131035161 is about 55955.6535213378. The cubic root of 3131035161 is about 1462.9494328279.
Adding to 3131035161 its reverse (1615301313), we get a palindrome (4746336474).
The spelling of 3131035161 in words is "three billion, one hundred thirty-one million, thirty-five thousand, one hundred sixty-one".
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