Base | Representation |
---|---|
bin | 10010111011111101… |
… | …000101110011010000 |
3 | 1221111001112202102210 |
4 | 102323331011303100 |
5 | 313120301114440 |
6 | 13201351312120 |
7 | 1316606354610 |
oct | 227375056320 |
9 | 57431482383 |
10 | 20333223120 |
11 | 8694635531 |
12 | 3b3567b640 |
13 | 1bc0738792 |
14 | dac666a40 |
15 | 7e013da80 |
hex | 4bbf45cd0 |
20333223120 has 80 divisors (see below), whose sum is σ = 72037710720. Its totient is φ = 4647593472.
The previous prime is 20333223091. The next prime is 20333223121. The reversal of 20333223120 is 2132233302.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20333223121) 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 15 ways as a sum of consecutive naturals, for example, 6049875 + ... + 6053234.
It is an arithmetic number, because the mean of its divisors is an integer number (900471384).
Almost surely, 220333223120 is an apocalyptic number.
20333223120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20333223120 is an abundant number, since it is smaller than the sum of its proper divisors (51704487600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20333223120 is a wasteful number, since it uses less digits than its factorization.
20333223120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12103132 (or 12103126 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 21.
Adding to 20333223120 its reverse (2132233302), we get a palindrome (22465456422).
The spelling of 20333223120 in words is "twenty billion, three hundred thirty-three million, two hundred twenty-three thousand, one hundred twenty".
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