Base | Representation |
---|---|
bin | 1111011111011… |
… | …10100101101100 |
3 | 100001112020210001 |
4 | 13233232211230 |
5 | 231231431413 |
6 | 20521154044 |
7 | 3135401056 |
oct | 757564554 |
9 | 301466701 |
10 | 129952108 |
11 | 67399a40 |
12 | 3762b924 |
13 | 20bcca50 |
14 | 1338a8d6 |
15 | b61e4dd |
hex | 7bee96c |
129952108 has 24 divisors (see below), whose sum is σ = 267175440. Its totient is φ = 54525120.
The previous prime is 129952091. The next prime is 129952117. The reversal of 129952108 is 801259921.
It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.
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, 113023 + ... + 114166.
It is an arithmetic number, because the mean of its divisors is an integer number (11132310).
Almost surely, 2129952108 is an apocalyptic number.
It is an amenable number.
129952108 is an abundant number, since it is smaller than the sum of its proper divisors (137223332).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
129952108 is a wasteful number, since it uses less digits than its factorization.
129952108 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 227217 (or 227215 counting only the distinct ones).
The product of its (nonzero) digits is 12960, while the sum is 37.
The square root of 129952108 is about 11399.6538543940. The cubic root of 129952108 is about 506.5174862820.
The spelling of 129952108 in words is "one hundred twenty-nine million, nine hundred fifty-two thousand, one hundred eight".
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