Base | Representation |
---|---|
bin | 10010111001111111… |
… | …111000101100001111 |
3 | 1221101202210020112101 |
4 | 102321333320230033 |
5 | 313033400321143 |
6 | 13154220015531 |
7 | 1316030364541 |
oct | 227177705417 |
9 | 57352706471 |
10 | 20300401423 |
11 | 8678058065 |
12 | 3b266915a7 |
13 | 1bb69b6363 |
14 | da8161691 |
15 | 7dc308b4d |
hex | 4b9ff8b0f |
20300401423 has 4 divisors (see below), whose sum is σ = 20301316920. Its totient is φ = 20299485928.
The previous prime is 20300401417. The next prime is 20300401469. The reversal of 20300401423 is 32410400302.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 20300401423 - 217 = 20300270351 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 20300401423.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20300401483) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423640 + ... + 469117.
It is an arithmetic number, because the mean of its divisors is an integer number (5075329230).
Almost surely, 220300401423 is an apocalyptic number.
20300401423 is a deficient number, since it is larger than the sum of its proper divisors (915497).
20300401423 is an equidigital number, since it uses as much as digits as its factorization.
20300401423 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 915496.
The product of its (nonzero) digits is 576, while the sum is 19.
Adding to 20300401423 its reverse (32410400302), we get a palindrome (52710801725).
The spelling of 20300401423 in words is "twenty billion, three hundred million, four hundred one thousand, four hundred twenty-three".
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