Base | Representation |
---|---|
bin | 10010110100110011… |
… | …010010011101001001 |
3 | 1221011200201121111120 |
4 | 102310303102131021 |
5 | 312344040304001 |
6 | 13141423145453 |
7 | 1313621322102 |
oct | 226463223511 |
9 | 57150647446 |
10 | 20213213001 |
11 | 8632917113 |
12 | 3b01445289 |
13 | 1ba190a087 |
14 | d9a7473a9 |
15 | 7d4835236 |
hex | 4b4cd2749 |
20213213001 has 8 divisors (see below), whose sum is σ = 26971265664. Its totient is φ = 13465317840.
The previous prime is 20213212963. The next prime is 20213213047. The reversal of 20213213001 is 10031231202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20213213001 - 233 = 11623278409 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20213213051) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2534730 + ... + 2542691.
It is an arithmetic number, because the mean of its divisors is an integer number (3371408208).
Almost surely, 220213213001 is an apocalyptic number.
It is an amenable number.
20213213001 is a deficient number, since it is larger than the sum of its proper divisors (6758052663).
20213213001 is a wasteful number, since it uses less digits than its factorization.
20213213001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5078751.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 20213213001 its reverse (10031231202), we get a palindrome (30244444203).
The spelling of 20213213001 in words is "twenty billion, two hundred thirteen million, two hundred thirteen thousand, one".
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