Base | Representation |
---|---|
bin | 10010111010000011… |
… | …101100110101001101 |
3 | 1221101211200001021100 |
4 | 102322003230311031 |
5 | 313034124321141 |
6 | 13154253253313 |
7 | 1316042031150 |
oct | 227203546515 |
9 | 57354601240 |
10 | 20301401421 |
11 | 8678680404 |
12 | 3b26a94239 |
13 | 1bb6c76582 |
14 | da8341c97 |
15 | 7dc4550b6 |
hex | 4ba0ecd4d |
20301401421 has 24 divisors (see below), whose sum is σ = 34970532480. Its totient is φ = 11096417376.
The previous prime is 20301401387. The next prime is 20301401429. The reversal of 20301401421 is 12410410302.
20301401421 is a `hidden beast` number, since 203 + 0 + 1 + 40 + 1 + 421 = 666.
It is not a de Polignac number, because 20301401421 - 27 = 20301401293 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20301401394 and 20301401403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20301401429) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7003866 + ... + 7006763.
It is an arithmetic number, because the mean of its divisors is an integer number (1457105520).
Almost surely, 220301401421 is an apocalyptic number.
20301401421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
20301401421 is a deficient number, since it is larger than the sum of its proper divisors (14669131059).
20301401421 is a wasteful number, since it uses less digits than its factorization.
20301401421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14010665 (or 14010662 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 20301401421 its reverse (12410410302), we get a palindrome (32711811723).
The spelling of 20301401421 in words is "twenty billion, three hundred one million, four hundred one thousand, four hundred twenty-one".
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