Base | Representation |
---|---|
bin | 10010110001000010… |
… | …101001011101110001 |
3 | 1221000022000200122022 |
4 | 102301002221131301 |
5 | 312231413134140 |
6 | 13131251121225 |
7 | 1312224166166 |
oct | 226102513561 |
9 | 57008020568 |
10 | 20150130545 |
11 | 8600250356 |
12 | 3aa42a3215 |
13 | 1b9182108c |
14 | d9220606d |
15 | 7ce0240b5 |
hex | 4b10a9771 |
20150130545 has 8 divisors (see below), whose sum is σ = 24183124224. Its totient is φ = 16118126064.
The previous prime is 20150130527. The next prime is 20150130557. The reversal of 20150130545 is 54503105102.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20150130545 - 28 = 20150130289 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201719 + ... + 284588.
It is an arithmetic number, because the mean of its divisors is an integer number (3022890528).
Almost surely, 220150130545 is an apocalyptic number.
It is an amenable number.
20150130545 is a deficient number, since it is larger than the sum of its proper divisors (4032993679).
20150130545 is an equidigital number, since it uses as much as digits as its factorization.
20150130545 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 494599.
The product of its (nonzero) digits is 3000, while the sum is 26.
Adding to 20150130545 its reverse (54503105102), we get a palindrome (74653235647).
The spelling of 20150130545 in words is "twenty billion, one hundred fifty million, one hundred thirty thousand, five hundred forty-five".
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