Base | Representation |
---|---|
bin | 111101011101000… |
… | …100111001100100 |
3 | 2122212001212120221 |
4 | 331131010321210 |
5 | 4102421014140 |
6 | 250150334124 |
7 | 34356426265 |
oct | 7535047144 |
9 | 2585055527 |
10 | 1031032420 |
11 | 489a99a10 |
12 | 24935a344 |
13 | 1357b4072 |
14 | 9ad0896c |
15 | 607b114a |
hex | 3d744e64 |
1031032420 has 48 divisors (see below), whose sum is σ = 2412281088. Its totient is φ = 366940160.
The previous prime is 1031032403. The next prime is 1031032451. The reversal of 1031032420 is 242301301.
It is a happy number.
1031032420 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 1031032394 and 1031032403.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39517 + ... + 60196.
It is an arithmetic number, because the mean of its divisors is an integer number (50255856).
Almost surely, 21031032420 is an apocalyptic number.
1031032420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1031032420 is an abundant number, since it is smaller than the sum of its proper divisors (1381248668).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1031032420 is a wasteful number, since it uses less digits than its factorization.
1031032420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 99780 (or 99778 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 1031032420 is about 32109.6935519478. The cubic root of 1031032420 is about 1010.2389461777.
Adding to 1031032420 its reverse (242301301), we get a palindrome (1273333721).
The spelling of 1031032420 in words is "one billion, thirty-one million, thirty-two thousand, four hundred twenty".
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