Base | Representation |
---|---|
bin | 10010101110000111… |
… | …100111101000011011 |
3 | 1220212212202210021020 |
4 | 102232013213220123 |
5 | 312131340231412 |
6 | 13122340213523 |
7 | 1311060356142 |
oct | 225607475033 |
9 | 56785683236 |
10 | 20101102107 |
11 | 8585603589 |
12 | 3a8b99a2a3 |
13 | 1b84615c78 |
14 | d898c2759 |
15 | 7c9a8c18c |
hex | 4ae1e7a1b |
20101102107 has 8 divisors (see below), whose sum is σ = 28378026576. Its totient is φ = 12612456192.
The previous prime is 20101101997. The next prime is 20101102111. The reversal of 20101102107 is 70120110102.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20101102107 - 211 = 20101100059 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20101102207) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197069578 + ... + 197069679.
It is an arithmetic number, because the mean of its divisors is an integer number (3547253322).
Almost surely, 220101102107 is an apocalyptic number.
20101102107 is a deficient number, since it is larger than the sum of its proper divisors (8276924469).
20101102107 is a wasteful number, since it uses less digits than its factorization.
20101102107 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 394139277.
The product of its (nonzero) digits is 28, while the sum is 15.
Adding to 20101102107 its reverse (70120110102), we get a palindrome (90221212209).
The spelling of 20101102107 in words is "twenty billion, one hundred one million, one hundred two thousand, one hundred seven".
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