Base | Representation |
---|---|
bin | 10010101111001111… |
… | …111010011000000110 |
3 | 1220221012102121100120 |
4 | 102233033322120012 |
5 | 312201213201004 |
6 | 13124254322410 |
7 | 1311410426250 |
oct | 225717723006 |
9 | 56835377316 |
10 | 20120053254 |
11 | 8595277894 |
12 | 3a961b9406 |
13 | 1b8851cb72 |
14 | d8c216cd0 |
15 | 7cb5823d9 |
hex | 4af3fa606 |
20120053254 has 32 divisors (see below), whose sum is σ = 46119006720. Its totient is φ = 5732297472.
The previous prime is 20120053223. The next prime is 20120053271. The reversal of 20120053254 is 45235002102.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 663714 + ... + 693365.
It is an arithmetic number, because the mean of its divisors is an integer number (1441218960).
Almost surely, 220120053254 is an apocalyptic number.
20120053254 is an abundant number, since it is smaller than the sum of its proper divisors (25998953466).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20120053254 is a wasteful number, since it uses less digits than its factorization.
20120053254 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1357444.
The product of its (nonzero) digits is 2400, while the sum is 24.
Adding to 20120053254 its reverse (45235002102), we get a palindrome (65355055356).
The spelling of 20120053254 in words is "twenty billion, one hundred twenty million, fifty-three thousand, two hundred fifty-four".
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