Base | Representation |
---|---|
bin | 1111011000111… |
… | …11010010111101 |
3 | 22222221010001222 |
4 | 13230133102331 |
5 | 231022244122 |
6 | 20451043125 |
7 | 3125233460 |
oct | 754372275 |
9 | 288833058 |
10 | 129103037 |
11 | 6696a028 |
12 | 372a04a5 |
13 | 2099343b |
14 | 132092d7 |
15 | b502b42 |
hex | 7b1f4bd |
129103037 has 16 divisors (see below), whose sum is σ = 150822912. Its totient is φ = 108226800.
The previous prime is 129103001. The next prime is 129103057. The reversal of 129103037 is 730301921.
It is a cyclic number.
It is not a de Polignac number, because 129103037 - 212 = 129098941 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 129102997 and 129103015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (129103057) 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, 69908 + ... + 71730.
It is an arithmetic number, because the mean of its divisors is an integer number (9426432).
Almost surely, 2129103037 is an apocalyptic number.
It is an amenable number.
129103037 is a deficient number, since it is larger than the sum of its proper divisors (21719875).
129103037 is a wasteful number, since it uses less digits than its factorization.
129103037 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2048.
The product of its (nonzero) digits is 1134, while the sum is 26.
The square root of 129103037 is about 11362.3517372065. The cubic root of 129103037 is about 505.4119267515.
Adding to 129103037 its reverse (730301921), we get a palindrome (859404958).
The spelling of 129103037 in words is "one hundred twenty-nine million, one hundred three thousand, thirty-seven".
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