Base | Representation |
---|---|
bin | 10010101110000100… |
… | …001101111001000010 |
3 | 1220212211002110212012 |
4 | 102232010031321002 |
5 | 312131123211432 |
6 | 13122305132522 |
7 | 1311046653020 |
oct | 225604157102 |
9 | 56784073765 |
10 | 20100210242 |
11 | 8585054502 |
12 | 3a8b62a142 |
13 | 1b84393038 |
14 | d8972d710 |
15 | 7c9962cb2 |
hex | 4ae10de42 |
20100210242 has 32 divisors (see below), whose sum is σ = 35793774720. Its totient is φ = 8282776320.
The previous prime is 20100210233. The next prime is 20100210281. The reversal of 20100210242 is 24201200102.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4868 + ... + 200559.
It is an arithmetic number, because the mean of its divisors is an integer number (1118555460).
Almost surely, 220100210242 is an apocalyptic number.
20100210242 is a deficient number, since it is larger than the sum of its proper divisors (15693564478).
20100210242 is a wasteful number, since it uses less digits than its factorization.
20100210242 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 205706.
The product of its (nonzero) digits is 64, while the sum is 14.
Adding to 20100210242 its reverse (24201200102), we get a palindrome (44301410344).
The spelling of 20100210242 in words is "twenty billion, one hundred million, two hundred ten thousand, two hundred forty-two".
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