Base | Representation |
---|---|
bin | 111101011011111… |
… | …011010101111100 |
3 | 2122211111120022010 |
4 | 331123323111330 |
5 | 4102331344012 |
6 | 250140051220 |
7 | 34354033014 |
oct | 7533732574 |
9 | 2584446263 |
10 | 1030731132 |
11 | 489903612 |
12 | 249233b10 |
13 | 135709ba2 |
14 | 9ac6ac44 |
15 | 60751c3c |
hex | 3d6fb57c |
1030731132 has 24 divisors (see below), whose sum is σ = 2411329536. Its totient is φ = 342678448.
The previous prime is 1030731109. The next prime is 1030731167. The reversal of 1030731132 is 2311370301.
It is a junction number, because it is equal to n+sod(n) for n = 1030731099 and 1030731108.
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, 107538 + ... + 116729.
It is an arithmetic number, because the mean of its divisors is an integer number (100472064).
Almost surely, 21030731132 is an apocalyptic number.
1030731132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1030731132 is an abundant number, since it is smaller than the sum of its proper divisors (1380598404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1030731132 is a wasteful number, since it uses less digits than its factorization.
1030731132 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 224657 (or 224655 counting only the distinct ones).
The product of its (nonzero) digits is 378, while the sum is 21.
The square root of 1030731132 is about 32105.0016664071. The cubic root of 1030731132 is about 1010.1405326786.
The spelling of 1030731132 in words is "one billion, thirty million, seven hundred thirty-one thousand, one hundred thirty-two".
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