Base | Representation |
---|---|
bin | 111101011101110… |
… | …000010000101110 |
3 | 2122212101220020002 |
4 | 331131300100232 |
5 | 4102442210110 |
6 | 250154224302 |
7 | 34361066144 |
oct | 7535602056 |
9 | 2585356202 |
10 | 1031210030 |
11 | 48a1003a4 |
12 | 249425092 |
13 | 135846b66 |
14 | 9ad53594 |
15 | 607e8aa5 |
hex | 3d77042e |
1031210030 has 16 divisors (see below), whose sum is σ = 1860594624. Its totient is φ = 411502560.
The previous prime is 1031210027. The next prime is 1031210041. The reversal of 1031210030 is 300121301.
It is a junction number, because it is equal to n+sod(n) for n = 1031209993 and 1031210020.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118262 + ... + 126681.
It is an arithmetic number, because the mean of its divisors is an integer number (116287164).
Almost surely, 21031210030 is an apocalyptic number.
1031210030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1031210030 is a deficient number, since it is larger than the sum of its proper divisors (829384594).
1031210030 is a wasteful number, since it uses less digits than its factorization.
1031210030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 245371.
The product of its (nonzero) digits is 18, while the sum is 11.
The square root of 1031210030 is about 32112.4591085765. The cubic root of 1031210030 is about 1010.2969521898.
Adding to 1031210030 its reverse (300121301), we get a palindrome (1331331331).
The spelling of 1031210030 in words is "one billion, thirty-one million, two hundred ten thousand, thirty".
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