Base | Representation |
---|---|
bin | 111101011001111… |
… | …100011010000101 |
3 | 2122210112011002120 |
4 | 331121330122011 |
5 | 4102213224310 |
6 | 250121000153 |
7 | 34346436132 |
oct | 7531743205 |
9 | 2583464076 |
10 | 1030211205 |
11 | 489588a21 |
12 | 249023059 |
13 | 13558733a |
14 | 9ab73589 |
15 | 6069cb70 |
hex | 3d67c685 |
1030211205 has 16 divisors (see below), whose sum is σ = 1652838144. Its totient is φ = 547945920.
The previous prime is 1030211197. The next prime is 1030211219. The reversal of 1030211205 is 5021120301.
It is not a de Polignac number, because 1030211205 - 23 = 1030211197 is a prime.
It is a super-2 number, since 2×10302112052 = 2122670253815104050, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88066 + ... + 99075.
It is an arithmetic number, because the mean of its divisors is an integer number (103302384).
Almost surely, 21030211205 is an apocalyptic number.
1030211205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1030211205 is a deficient number, since it is larger than the sum of its proper divisors (622626939).
1030211205 is a wasteful number, since it uses less digits than its factorization.
1030211205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 187516.
The product of its (nonzero) digits is 60, while the sum is 15.
The square root of 1030211205 is about 32096.9033553083. The cubic root of 1030211205 is about 1009.9706572530.
Adding to 1030211205 its reverse (5021120301), we get a palindrome (6051331506).
The spelling of 1030211205 in words is "one billion, thirty million, two hundred eleven thousand, two hundred five".
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