Base | Representation |
---|---|
bin | 1111011000111… |
… | …11010000000000 |
3 | 22222221002210222 |
4 | 13230133100000 |
5 | 231022242343 |
6 | 20451042212 |
7 | 3125233100 |
oct | 754372000 |
9 | 288832728 |
10 | 129102848 |
11 | 66969976 |
12 | 372a0368 |
13 | 20993324 |
14 | 13209200 |
15 | b502a68 |
hex | 7b1f400 |
129102848 has 132 divisors (see below), whose sum is σ = 313633152. Its totient is φ = 52899840.
The previous prime is 129102833. The next prime is 129102863. The reversal of 129102848 is 848201921.
It is an interprime number because it is at equal distance from previous prime (129102833) and next prime (129102863).
It is a super-2 number, since 2×1291028482 = 33335090723422208, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1555415 + ... + 1555497.
Almost surely, 2129102848 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 129102848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156816576).
129102848 is an abundant number, since it is smaller than the sum of its proper divisors (184530304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
129102848 is an equidigital number, since it uses as much as digits as its factorization.
129102848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 148 (or 123 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 35.
The square root of 129102848 is about 11362.3434202633. The cubic root of 129102848 is about 505.4116801193.
The spelling of 129102848 in words is "one hundred twenty-nine million, one hundred two thousand, eight hundred forty-eight".
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