Base | Representation |
---|---|
bin | 10010111100100001… |
… | …011011101111100100 |
3 | 1221111201110210002212 |
4 | 102330201123233210 |
5 | 313130221001210 |
6 | 13202331422552 |
7 | 1320053344364 |
oct | 227441335744 |
9 | 57451423085 |
10 | 20342750180 |
11 | 8699a52335 |
12 | 3b388b4a58 |
13 | 1bc26c2cac |
14 | dada269a4 |
15 | 7e0dc1805 |
hex | 4bc85bbe4 |
20342750180 has 24 divisors (see below), whose sum is σ = 42882219072. Its totient is φ = 8106158432.
The previous prime is 20342750167. The next prime is 20342750189. The reversal of 20342750180 is 8105724302.
It is not an unprimeable number, because it can be changed into a prime (20342750189) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 1928462 + ... + 1938981.
It is an arithmetic number, because the mean of its divisors is an integer number (1786759128).
Almost surely, 220342750180 is an apocalyptic number.
20342750180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20342750180 is an abundant number, since it is smaller than the sum of its proper divisors (22539468892).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20342750180 is a wasteful number, since it uses less digits than its factorization.
20342750180 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3867715 (or 3867713 counting only the distinct ones).
The product of its (nonzero) digits is 13440, while the sum is 32.
The spelling of 20342750180 in words is "twenty billion, three hundred forty-two million, seven hundred fifty thousand, one hundred eighty".
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