Base | Representation |
---|---|
bin | 111001011010… |
… | …1011001000110 |
3 | 2002122101201000 |
4 | 1302311121012 |
5 | 30201244420 |
6 | 2553114130 |
7 | 513605112 |
oct | 162653106 |
9 | 62571630 |
10 | 30103110 |
11 | 15aa0a04 |
12 | a0b8946 |
13 | 630cbbb |
14 | 3dd8742 |
15 | 2999690 |
hex | 1cb5646 |
30103110 has 32 divisors (see below), whose sum is σ = 80275680. Its totient is φ = 8027424.
The previous prime is 30103109. The next prime is 30103111. The reversal of 30103110 is 1130103.
It is an interprime number because it is at equal distance from previous prime (30103109) and next prime (30103111).
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 30103092 and 30103101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30103111) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55477 + ... + 56016.
It is an arithmetic number, because the mean of its divisors is an integer number (2508615).
Almost surely, 230103110 is an apocalyptic number.
30103110 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30103110 is an abundant number, since it is smaller than the sum of its proper divisors (50172570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30103110 is a wasteful number, since it uses less digits than its factorization.
30103110 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 111509 (or 111503 counting only the distinct ones).
The product of its (nonzero) digits is 9, while the sum is 9.
The square root of 30103110 is about 5486.6301132845. The cubic root of 30103110 is about 311.0788288027.
Adding to 30103110 its reverse (1130103), we get a palindrome (31233213).
The spelling of 30103110 in words is "thirty million, one hundred three thousand, one hundred ten".
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