Base | Representation |
---|---|
bin | 101101101000010… |
… | …1100001110011001 |
3 | 10221201001001020101 |
4 | 1123100230032121 |
5 | 11113430231410 |
6 | 411532455401 |
7 | 52641103351 |
oct | 13320541631 |
9 | 3851031211 |
10 | 1531102105 |
11 | 7162a3745 |
12 | 36891a561 |
13 | 1b5291aa0 |
14 | 1074bbb61 |
15 | 8e63ed3a |
hex | 5b42c399 |
1531102105 has 8 divisors (see below), whose sum is σ = 1978655112. Its totient is φ = 1130659968.
The previous prime is 1531102091. The next prime is 1531102109. The reversal of 1531102105 is 5012011351.
It can be written as a sum of positive squares in 4 ways, for example, as 132641289 + 1398460816 = 11517^2 + 37396^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1531102105 - 211 = 1531100057 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1531102109) 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, 11777644 + ... + 11777773.
It is an arithmetic number, because the mean of its divisors is an integer number (247331889).
Almost surely, 21531102105 is an apocalyptic number.
It is an amenable number.
1531102105 is a deficient number, since it is larger than the sum of its proper divisors (447553007).
1531102105 is a wasteful number, since it uses less digits than its factorization.
1531102105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23555435.
The product of its (nonzero) digits is 150, while the sum is 19.
The square root of 1531102105 is about 39129.2998276228. The cubic root of 1531102105 is about 1152.5719637668.
Adding to 1531102105 its reverse (5012011351), we get a palindrome (6543113456).
The spelling of 1531102105 in words is "one billion, five hundred thirty-one million, one hundred two thousand, one hundred five".
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