Base | Representation |
---|---|
bin | 10011010101000100… |
… | …100001010010110111 |
3 | 1222120102102222102020 |
4 | 103111010201102313 |
5 | 320001134214033 |
6 | 13311243044223 |
7 | 1333214125143 |
oct | 232504412267 |
9 | 58512388366 |
10 | 20754601143 |
11 | 8890482031 |
12 | 4032810673 |
13 | 1c59b237a3 |
14 | 100c5d4223 |
15 | 8171266b3 |
hex | 4d51214b7 |
20754601143 has 16 divisors (see below), whose sum is σ = 28331790816. Its totient is φ = 13510218240.
The previous prime is 20754601141. The next prime is 20754601169. The reversal of 20754601143 is 34110645702.
It is not a de Polignac number, because 20754601143 - 21 = 20754601141 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20754601141) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388846 + ... + 438987.
It is an arithmetic number, because the mean of its divisors is an integer number (1770736926).
Almost surely, 220754601143 is an apocalyptic number.
20754601143 is a deficient number, since it is larger than the sum of its proper divisors (7577189673).
20754601143 is a wasteful number, since it uses less digits than its factorization.
20754601143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 828034.
The product of its (nonzero) digits is 20160, while the sum is 33.
The spelling of 20754601143 in words is "twenty billion, seven hundred fifty-four million, six hundred one thousand, one hundred forty-three".
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