Base | Representation |
---|---|
bin | 100101000011100… |
… | …0000110001000010 |
3 | 10012122120211110220 |
4 | 1022013000301002 |
5 | 10021244232010 |
6 | 323213203510 |
7 | 42545214216 |
oct | 11207006102 |
9 | 3178524426 |
10 | 1243352130 |
11 | 588926949 |
12 | 2a8490596 |
13 | 16a792a27 |
14 | bb1b6946 |
15 | 74250970 |
hex | 4a1c0c42 |
1243352130 has 32 divisors (see below), whose sum is σ = 2985012864. Its totient is φ = 331453056.
The previous prime is 1243352113. The next prime is 1243352167. The reversal of 1243352130 is 312533421.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 1243352130.
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, 139467 + ... + 148113.
It is an arithmetic number, because the mean of its divisors is an integer number (93281652).
Almost surely, 21243352130 is an apocalyptic number.
1243352130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1243352130 is an abundant number, since it is smaller than the sum of its proper divisors (1741660734).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1243352130 is a wasteful number, since it uses less digits than its factorization.
1243352130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13450.
The product of its (nonzero) digits is 2160, while the sum is 24.
The square root of 1243352130 is about 35261.1986466711. The cubic root of 1243352130 is about 1075.3042960446.
Adding to 1243352130 its reverse (312533421), we get a palindrome (1555885551).
The spelling of 1243352130 in words is "one billion, two hundred forty-three million, three hundred fifty-two thousand, one hundred thirty".
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