| Base | Representation |
|---|---|
| bin | 111101010101111… |
| … | …100000111010110 |
| 3 | 2122201112211002000 |
| 4 | 331111330013112 |
| 5 | 4101431131210 |
| 6 | 250042300130 |
| 7 | 34334504433 |
| oct | 7525740726 |
| 9 | 2581484060 |
| 10 | 1029161430 |
| 11 | 488a31240 |
| 12 | 2487b7646 |
| 13 | 1352aa57b |
| 14 | 9a97cb8a |
| 15 | 60541ac0 |
| hex | 3d57c1d6 |
1029161430 has 128 divisors (see below), whose sum is σ = 3012733440. Its totient is φ = 247927680.
The previous prime is 1029161423. The next prime is 1029161437. The reversal of 1029161430 is 341619201.
1029161430 is a `hidden beast` number, since 10 + 2 + 9 + 1 + 614 + 30 = 666.
It is an interprime number because it is at equal distance from previous prime (1029161423) and next prime (1029161437).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 1029161394 and 1029161403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1029161437) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 512809 + ... + 514811.
It is an arithmetic number, because the mean of its divisors is an integer number (23536980).
Almost surely, 21029161430 is an apocalyptic number.
1029161430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1029161430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1506366720).
1029161430 is an abundant number, since it is smaller than the sum of its proper divisors (1983572010).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1029161430 is a wasteful number, since it uses less digits than its factorization.
1029161430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2203 (or 2197 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 27.
The square root of 1029161430 is about 32080.5459741570. The cubic root of 1029161430 is about 1009.6274906379.
The spelling of 1029161430 in words is "one billion, twenty-nine million, one hundred sixty-one thousand, four hundred thirty".
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