Base | Representation |
---|---|
bin | 100101011100011001… |
… | …111100110010100010 |
3 | 10211202221211020021100 |
4 | 211130121330302202 |
5 | 1124314440342010 |
6 | 30245300535230 |
7 | 2622213651543 |
oct | 453431746242 |
9 | 124687736240 |
10 | 40205012130 |
11 | 16061754758 |
12 | 79606b1516 |
13 | 3a396a300a |
14 | 1d358d64ca |
15 | 10a49d12c0 |
hex | 95c67cca2 |
40205012130 has 96 divisors (see below), whose sum is σ = 112376160000. Its totient is φ = 9940928256.
The previous prime is 40205012119. The next prime is 40205012131. The reversal of 40205012130 is 3121050204.
40205012130 is a `hidden beast` number, since 402 + 0 + 50 + 1 + 213 + 0 = 666.
40205012130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (40205012131) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 169755 + ... + 330494.
It is an arithmetic number, because the mean of its divisors is an integer number (1170585000).
Almost surely, 240205012130 is an apocalyptic number.
40205012130 is an abundant number, since it is smaller than the sum of its proper divisors (72171147870).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
40205012130 is a wasteful number, since it uses less digits than its factorization.
40205012130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 500328 (or 500325 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
Adding to 40205012130 its reverse (3121050204), we get a palindrome (43326062334).
The spelling of 40205012130 in words is "forty billion, two hundred five million, twelve thousand, one hundred thirty".
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