Base | Representation |
---|---|
bin | 10010111010000010… |
… | …111011111101001111 |
3 | 1221101211021212122220 |
4 | 102322002323331033 |
5 | 313034101414411 |
6 | 13154245110423 |
7 | 1316040235413 |
oct | 227202737517 |
9 | 57354255586 |
10 | 20301201231 |
11 | 8678553a63 |
12 | 3b269b8413 |
13 | 1bb6c0640c |
14 | da82ccd43 |
15 | 7dc415b06 |
hex | 4ba0bbf4f |
20301201231 has 8 divisors (see below), whose sum is σ = 27439066800. Its totient is φ = 13348734912.
The previous prime is 20301201211. The next prime is 20301201269. The reversal of 20301201231 is 13210210302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20301201231 - 25 = 20301201199 is a prime.
It is a super-2 number, since 2×203012012312 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 20301201231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20301201211) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46349556 + ... + 46349993.
It is an arithmetic number, because the mean of its divisors is an integer number (3429883350).
Almost surely, 220301201231 is an apocalyptic number.
20301201231 is a deficient number, since it is larger than the sum of its proper divisors (7137865569).
20301201231 is an equidigital number, since it uses as much as digits as its factorization.
20301201231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 92699625.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 20301201231 its reverse (13210210302), we get a palindrome (33511411533).
The spelling of 20301201231 in words is "twenty billion, three hundred one million, two hundred one thousand, two hundred thirty-one".
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