Base | Representation |
---|---|
bin | 10010101111011011… |
… | …101100010010111000 |
3 | 1220221102020111100210 |
4 | 102233123230102320 |
5 | 312203011010204 |
6 | 13124444431120 |
7 | 1311445610310 |
oct | 225733542270 |
9 | 56842214323 |
10 | 20123141304 |
11 | 8596a969a2 |
12 | 3a972484a0 |
13 | 1b89061606 |
14 | d8c7bc440 |
15 | 7cb992389 |
hex | 4af6ec4b8 |
20123141304 has 32 divisors (see below), whose sum is σ = 57494689920. Its totient is φ = 5749468896.
The previous prime is 20123141299. The next prime is 20123141309. The reversal of 20123141304 is 40314132102.
It is an interprime number because it is at equal distance from previous prime (20123141299) and next prime (20123141309).
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 (20123141309) 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, 59890134 + ... + 59890469.
It is an arithmetic number, because the mean of its divisors is an integer number (1796709060).
Almost surely, 220123141304 is an apocalyptic number.
20123141304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
20123141304 is an abundant number, since it is smaller than the sum of its proper divisors (37371548616).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20123141304 is a wasteful number, since it uses less digits than its factorization.
20123141304 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 119780619 (or 119780615 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 20123141304 its reverse (40314132102), we get a palindrome (60437273406).
The spelling of 20123141304 in words is "twenty billion, one hundred twenty-three million, one hundred forty-one thousand, three hundred four".
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