Base | Representation |
---|---|
bin | 101110001010… |
… | …001000101001 |
3 | 211202202021020 |
4 | 232022020221 |
5 | 11044201022 |
6 | 1111203053 |
7 | 204564240 |
oct | 56121051 |
9 | 24682236 |
10 | 12100137 |
11 | 6915015 |
12 | 4076489 |
13 | 267875a |
14 | 186d957 |
15 | 10e035c |
hex | b8a229 |
12100137 has 16 divisors (see below), whose sum is σ = 19034112. Its totient is φ = 6690960.
The previous prime is 12100111. The next prime is 12100159. The reversal of 12100137 is 73100121.
It is not a de Polignac number, because 12100137 - 212 = 12096041 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12100177) 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, 8643 + ... + 9944.
It is an arithmetic number, because the mean of its divisors is an integer number (1189632).
Almost surely, 212100137 is an apocalyptic number.
It is an amenable number.
12100137 is a deficient number, since it is larger than the sum of its proper divisors (6933975).
12100137 is a wasteful number, since it uses less digits than its factorization.
12100137 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18628.
The product of its (nonzero) digits is 42, while the sum is 15.
The square root of 12100137 is about 3478.5251184949. The cubic root of 12100137 is about 229.5779089111.
Adding to 12100137 its reverse (73100121), we get a palindrome (85200258).
The spelling of 12100137 in words is "twelve million, one hundred thousand, one hundred thirty-seven".
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