Base | Representation |
---|---|
bin | 10010101111110110… |
… | …010100100111011001 |
3 | 1220221220101011100112 |
4 | 102233312110213121 |
5 | 312211302402301 |
6 | 13125254214105 |
7 | 1311562133630 |
oct | 225766244731 |
9 | 56856334315 |
10 | 20130122201 |
11 | 859aa24832 |
12 | 3a99654335 |
13 | 1b8a636c17 |
14 | d8d6b8517 |
15 | 7cc3c09bb |
hex | 4afd949d9 |
20130122201 has 8 divisors (see below), whose sum is σ = 23243028480. Its totient is φ = 17076509568.
The previous prime is 20130122171. The next prime is 20130122237. The reversal of 20130122201 is 10222103102.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20130122201 - 210 = 20130121177 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (20130122291) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14822681 + ... + 14824038.
It is an arithmetic number, because the mean of its divisors is an integer number (2905378560).
Almost surely, 220130122201 is an apocalyptic number.
It is an amenable number.
20130122201 is a deficient number, since it is larger than the sum of its proper divisors (3112906279).
20130122201 is an equidigital number, since it uses as much as digits as its factorization.
20130122201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29646823.
The product of its (nonzero) digits is 48, while the sum is 14.
Adding to 20130122201 its reverse (10222103102), we get a palindrome (30352225303).
The spelling of 20130122201 in words is "twenty billion, one hundred thirty million, one hundred twenty-two thousand, two hundred one".
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