Base | Representation |
---|---|
bin | 111101011001101… |
… | …000110110100111 |
3 | 2122210101002020010 |
4 | 331121220312213 |
5 | 4102203143421 |
6 | 250115141303 |
7 | 34345653462 |
oct | 7531506647 |
9 | 2583332203 |
10 | 1030131111 |
11 | 489533829 |
12 | 248ba4833 |
13 | 135559a49 |
14 | 9ab522d9 |
15 | 60684076 |
hex | 3d668da7 |
1030131111 has 4 divisors (see below), whose sum is σ = 1373508152. Its totient is φ = 686754072.
The previous prime is 1030131103. The next prime is 1030131139. The reversal of 1030131111 is 1111310301.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 1030131111 - 23 = 1030131103 is a prime.
It is a super-2 number, since 2×10301311112 = 2122340211700188642, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1030131511) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171688516 + ... + 171688521.
It is an arithmetic number, because the mean of its divisors is an integer number (343377038).
Almost surely, 21030131111 is an apocalyptic number.
1030131111 is a deficient number, since it is larger than the sum of its proper divisors (343377041).
1030131111 is an equidigital number, since it uses as much as digits as its factorization.
1030131111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 343377040.
The product of its (nonzero) digits is 9, while the sum is 12.
The square root of 1030131111 is about 32095.6556406003. The cubic root of 1030131111 is about 1009.9444831099.
Adding to 1030131111 its reverse (1111310301), we get a palindrome (2141441412).
The spelling of 1030131111 in words is "one billion, thirty million, one hundred thirty-one thousand, one hundred eleven".
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