Base | Representation |
---|---|
bin | 10010111010101101… |
… | …111011011000010010 |
3 | 1221102121111102221220 |
4 | 102322231323120102 |
5 | 313044443033213 |
6 | 13155330425510 |
7 | 1316235104145 |
oct | 227255733022 |
9 | 57377442856 |
10 | 20312471058 |
11 | 8683951170 |
12 | 3b2a732296 |
13 | 1bb9350c59 |
14 | da99c405c |
15 | 7dd3dee23 |
hex | 4bab7b612 |
20312471058 has 32 divisors (see below), whose sum is σ = 44323172352. Its totient is φ = 6154592400.
The previous prime is 20312471051. The next prime is 20312471077. The reversal of 20312471058 is 85017421302.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is not an unprimeable number, because it can be changed into a prime (20312471051) 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 15 ways as a sum of consecutive naturals, for example, 1125123 + ... + 1143033.
It is an arithmetic number, because the mean of its divisors is an integer number (1385099136).
Almost surely, 220312471058 is an apocalyptic number.
20312471058 is an abundant number, since it is smaller than the sum of its proper divisors (24010701294).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20312471058 is a wasteful number, since it uses less digits than its factorization.
20312471058 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35110.
The product of its (nonzero) digits is 13440, while the sum is 33.
The spelling of 20312471058 in words is "twenty billion, three hundred twelve million, four hundred seventy-one thousand, fifty-eight".
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