Base | Representation |
---|---|
bin | 1001001010010011101000… |
… | …11011101011011111110111 |
3 | 2122022212200002012010201020 |
4 | 10211021310123223133313 |
5 | 10120030134102000401 |
6 | 110502351313432223 |
7 | 4146311360633136 |
oct | 445116433533767 |
9 | 78285602163636 |
10 | 20145350031351 |
11 | 646765a9a4996 |
12 | 2314378b6b673 |
13 | b3191039bb4c |
14 | 4d907c22591d |
15 | 24e060601d36 |
hex | 1252746eb7f7 |
20145350031351 has 8 divisors (see below), whose sum is σ = 27485128725120. Its totient is φ = 13117902345912.
The previous prime is 20145350031269. The next prime is 20145350031353. The reversal of 20145350031351 is 15313005354102.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20145350031351 - 27 = 20145350031223 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20145350031353) 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, 78082751931 + ... + 78082752188.
It is an arithmetic number, because the mean of its divisors is an integer number (3435641090640).
Almost surely, 220145350031351 is an apocalyptic number.
20145350031351 is a deficient number, since it is larger than the sum of its proper divisors (7339778693769).
20145350031351 is a wasteful number, since it uses less digits than its factorization.
20145350031351 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 156165504165.
The product of its (nonzero) digits is 27000, while the sum is 33.
Adding to 20145350031351 its reverse (15313005354102), we get a palindrome (35458355385453).
The spelling of 20145350031351 in words is "twenty trillion, one hundred forty-five billion, three hundred fifty million, thirty-one thousand, three hundred fifty-one".
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