Base | Representation |
---|---|
bin | 1001000110111101001101… |
… | …10100010011101000100111 |
3 | 2121220212112020212011100112 |
4 | 10203132212310103220213 |
5 | 10111133403143343030 |
6 | 110333432230203235 |
7 | 4135064542161425 |
oct | 443364664235047 |
9 | 77825466764315 |
10 | 20030231231015 |
11 | 6422856385385 |
12 | 22b5babab351b |
13 | b23ac5549505 |
14 | 4d367b298115 |
15 | 24b073e37a95 |
hex | 1237a6d13a27 |
20030231231015 has 8 divisors (see below), whose sum is σ = 24045880479648. Its totient is φ = 16017782983200.
The previous prime is 20030231230967. The next prime is 20030231231029. The reversal of 20030231231015 is 51013213203002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20030231231015 - 218 = 20030230968871 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800236436 + ... + 800261465.
It is an arithmetic number, because the mean of its divisors is an integer number (3005735059956).
Almost surely, 220030231231015 is an apocalyptic number.
20030231231015 is a deficient number, since it is larger than the sum of its proper divisors (4015649248633).
20030231231015 is a wasteful number, since it uses less digits than its factorization.
20030231231015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1600500409.
The product of its (nonzero) digits is 1080, while the sum is 23.
Adding to 20030231231015 its reverse (51013213203002), we get a palindrome (71043444434017).
The spelling of 20030231231015 in words is "twenty trillion, thirty billion, two hundred thirty-one million, two hundred thirty-one thousand, fifteen".
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