Base | Representation |
---|---|
bin | 1111011101101… |
… | …01101100010010 |
3 | 100001002102002120 |
4 | 13232311230102 |
5 | 231202002213 |
6 | 20512155110 |
7 | 3133410450 |
oct | 756655422 |
9 | 301072076 |
10 | 129719058 |
11 | 6724a937 |
12 | 37538a96 |
13 | 20b4a951 |
14 | 133299d0 |
15 | b5c5423 |
hex | 7bb5b12 |
129719058 has 32 divisors (see below), whose sum is σ = 296891520. Its totient is φ = 37013760.
The previous prime is 129719053. The next prime is 129719119. The reversal of 129719058 is 850917921.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is not an unprimeable number, because it can be changed into a prime (129719053) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40848 + ... + 43908.
It is an arithmetic number, because the mean of its divisors is an integer number (9277860).
Almost surely, 2129719058 is an apocalyptic number.
129719058 is an abundant number, since it is smaller than the sum of its proper divisors (167172462).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
129719058 is a wasteful number, since it uses less digits than its factorization.
129719058 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4082.
The product of its (nonzero) digits is 45360, while the sum is 42.
The square root of 129719058 is about 11389.4274658562. The cubic root of 129719058 is about 506.2145168851.
The spelling of 129719058 in words is "one hundred twenty-nine million, seven hundred nineteen thousand, fifty-eight".
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