Base | Representation |
---|---|
bin | 10011000000110110… |
… | …111100111011100010 |
3 | 1221200210100212002201 |
4 | 103000312330323202 |
5 | 313302332000002 |
6 | 13213451003414 |
7 | 1321625613112 |
oct | 230066747342 |
9 | 57623325081 |
10 | 20415500002 |
11 | 8727021357 |
12 | 3b5913956a |
13 | 1c047b5321 |
14 | db9563042 |
15 | 7e7492087 |
hex | 4c0dbcee2 |
20415500002 has 8 divisors (see below), whose sum is σ = 30624421212. Its totient is φ = 10207359600.
The previous prime is 20415499987. The next prime is 20415500003. The reversal of 20415500002 is 20000551402.
It can be written as a sum of positive squares in 2 ways, for example, as 20414980161 + 519841 = 142881^2 + 721^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (20415500003) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124749 + ... + 237472.
Almost surely, 220415500002 is an apocalyptic number.
20415500002 is a deficient number, since it is larger than the sum of its proper divisors (10208921210).
20415500002 is a wasteful number, since it uses less digits than its factorization.
20415500002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 390404.
The product of its (nonzero) digits is 400, while the sum is 19.
The spelling of 20415500002 in words is "twenty billion, four hundred fifteen million, five hundred thousand, two".
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