Base | Representation |
---|---|
bin | 10010111111111100… |
… | …111110000001100010 |
3 | 1221122201202121210111 |
4 | 102333330332001202 |
5 | 313234434101010 |
6 | 13212145121534 |
7 | 1321352455450 |
oct | 227774760142 |
9 | 57581677714 |
10 | 20400300130 |
11 | 871948a481 |
12 | 3b540292aa |
13 | 1c015c2a12 |
14 | db75279d0 |
15 | 7e5e8d58a |
hex | 4bff3e062 |
20400300130 has 64 divisors (see below), whose sum is σ = 42302746368. Its totient is φ = 6938507520.
The previous prime is 20400300121. The next prime is 20400300139. The reversal of 20400300130 is 3100300402.
It is an interprime number because it is at equal distance from previous prime (20400300121) and next prime (20400300139).
It is a self number, because there is not a number n which added to its sum of digits gives 20400300130.
It is not an unprimeable number, because it can be changed into a prime (20400300139) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6331920 + ... + 6335140.
It is an arithmetic number, because the mean of its divisors is an integer number (660980412).
Almost surely, 220400300130 is an apocalyptic number.
20400300130 is an abundant number, since it is smaller than the sum of its proper divisors (21902446238).
20400300130 is a wasteful number, since it uses less digits than its factorization.
20400300130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3931.
The product of its (nonzero) digits is 72, while the sum is 13.
Adding to 20400300130 its reverse (3100300402), we get a palindrome (23500600532).
The spelling of 20400300130 in words is "twenty billion, four hundred million, three hundred thousand, one hundred thirty".
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