Base | Representation |
---|---|
bin | 10110010110110000… |
… | …11101100101100101 |
3 | 1010222110002222022012 |
4 | 23023120131211211 |
5 | 144040020401320 |
6 | 5302543044005 |
7 | 603265232402 |
oct | 131330354545 |
9 | 33873088265 |
10 | 12002122085 |
11 | 50a9980a68 |
12 | 23ab5a0605 |
13 | 11937286b5 |
14 | 81c0112a9 |
15 | 4a3a3e4c5 |
hex | 2cb61d965 |
12002122085 has 16 divisors (see below), whose sum is σ = 15395304960. Its totient is φ = 8960223360.
The previous prime is 12002122057. The next prime is 12002122087. The reversal of 12002122085 is 58022120021.
It is not a de Polignac number, because 12002122085 - 214 = 12002105701 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (23).
It is a self number, because there is not a number n which added to its sum of digits gives 12002122085.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12002122087) 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, 1268045 + ... + 1277474.
It is an arithmetic number, because the mean of its divisors is an integer number (962206560).
Almost surely, 212002122085 is an apocalyptic number.
It is an amenable number.
12002122085 is a deficient number, since it is larger than the sum of its proper divisors (3393182875).
12002122085 is a wasteful number, since it uses less digits than its factorization.
12002122085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2545588.
The product of its (nonzero) digits is 640, while the sum is 23.
The spelling of 12002122085 in words is "twelve billion, two million, one hundred twenty-two thousand, eighty-five".
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