Base | Representation |
---|---|
bin | 10010111110110001… |
… | …011100110000001000 |
3 | 1221121100111211022020 |
4 | 102332301130300020 |
5 | 313214402044143 |
6 | 13210200524440 |
7 | 1321022263143 |
oct | 227661346010 |
9 | 57540454266 |
10 | 20380503048 |
11 | 8709298654 |
12 | 3b49480720 |
13 | 1bca480a79 |
14 | db4a5305a |
15 | 7e437c883 |
hex | 4bec5cc08 |
20380503048 has 64 divisors (see below), whose sum is σ = 51293139840. Its totient is φ = 6747992064.
The previous prime is 20380503019. The next prime is 20380503079. The reversal of 20380503048 is 84030508302.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7401640 + ... + 7404392.
It is an arithmetic number, because the mean of its divisors is an integer number (801455310).
Almost surely, 220380503048 is an apocalyptic number.
It is an amenable number.
20380503048 is an abundant number, since it is smaller than the sum of its proper divisors (30912636792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20380503048 is a wasteful number, since it uses less digits than its factorization.
20380503048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4718 (or 4714 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 33.
The spelling of 20380503048 in words is "twenty billion, three hundred eighty million, five hundred three thousand, forty-eight".
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