Base | Representation |
---|---|
bin | 111101011101000… |
… | …010011011101000 |
3 | 2122212001100201120 |
4 | 331131002123220 |
5 | 4102420203222 |
6 | 250150215240 |
7 | 34356354645 |
oct | 7535023350 |
9 | 2585040646 |
10 | 1031022312 |
11 | 489a92361 |
12 | 249354520 |
13 | 1357ac598 |
14 | 9ad04dcc |
15 | 607ad15c |
hex | 3d7426e8 |
1031022312 has 32 divisors (see below), whose sum is σ = 2604134400. Its totient is φ = 340130304.
The previous prime is 1031022299. The next prime is 1031022319. The reversal of 1031022312 is 2132201301.
It is a junction number, because it is equal to n+sod(n) for n = 1031022291 and 1031022300.
It is not an unprimeable number, because it can be changed into a prime (1031022319) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219112 + ... + 223767.
It is an arithmetic number, because the mean of its divisors is an integer number (81379200).
Almost surely, 21031022312 is an apocalyptic number.
1031022312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1031022312 is an abundant number, since it is smaller than the sum of its proper divisors (1573112088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1031022312 is a wasteful number, since it uses less digits than its factorization.
1031022312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 442985 (or 442981 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 1031022312 is about 32109.5361536102. The cubic root of 1031022312 is about 1010.2356447850.
Adding to 1031022312 its reverse (2132201301), we get a palindrome (3163223613).
The spelling of 1031022312 in words is "one billion, thirty-one million, twenty-two thousand, three hundred twelve".
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