Base | Representation |
---|---|
bin | 100111101010101… |
… | …1110110000111110 |
3 | 10102202120101102020 |
4 | 1033111132300332 |
5 | 10211220443402 |
6 | 340024341010 |
7 | 44661402102 |
oct | 11725366076 |
9 | 3382511366 |
10 | 1331031102 |
11 | 623372405 |
12 | 311914766 |
13 | 1829b138b |
14 | c8abb902 |
15 | 7bcbe8bc |
hex | 4f55ec3e |
1331031102 has 32 divisors (see below), whose sum is σ = 2714123904. Its totient is φ = 435045600.
The previous prime is 1331031089. The next prime is 1331031109. The reversal of 1331031102 is 2011301331.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1331031109) 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, 115653 + ... + 126639.
It is an arithmetic number, because the mean of its divisors is an integer number (84816372).
Almost surely, 21331031102 is an apocalyptic number.
1331031102 is an abundant number, since it is smaller than the sum of its proper divisors (1383092802).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1331031102 is a wasteful number, since it uses less digits than its factorization.
1331031102 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11384.
The product of its (nonzero) digits is 54, while the sum is 15.
The square root of 1331031102 is about 36483.2989462302. The cubic root of 1331031102 is about 1100.0085679773.
Adding to 1331031102 its reverse (2011301331), we get a palindrome (3342332433).
The spelling of 1331031102 in words is "one billion, three hundred thirty-one million, thirty-one thousand, one hundred two".
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