Base | Representation |
---|---|
bin | 10010101111001111… |
… | …101101011011001010 |
3 | 1220221012022220120200 |
4 | 102233033231123022 |
5 | 312201210001302 |
6 | 13124253233030 |
7 | 1311410115501 |
oct | 225717553312 |
9 | 56835286520 |
10 | 20120000202 |
11 | 8595240a45 |
12 | 3a96192776 |
13 | 1b88501983 |
14 | d8c201838 |
15 | 7cb57181c |
hex | 4af3ed6ca |
20120000202 has 48 divisors (see below), whose sum is σ = 44108064000. Its totient is φ = 6627563712.
The previous prime is 20120000189. The next prime is 20120000207. The reversal of 20120000202 is 20200002102.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is not an unprimeable number, because it can be changed into a prime (20120000207) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5379249 + ... + 5382987.
It is an arithmetic number, because the mean of its divisors is an integer number (918918000).
Almost surely, 220120000202 is an apocalyptic number.
20120000202 is an abundant number, since it is smaller than the sum of its proper divisors (23988063798).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20120000202 is a wasteful number, since it uses less digits than its factorization.
20120000202 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7195 (or 7192 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 9.
Adding to 20120000202 its reverse (20200002102), we get a palindrome (40320002304).
The spelling of 20120000202 in words is "twenty billion, one hundred twenty million, two hundred two", and thus it is an aban number.
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