Base | Representation |
---|---|
bin | 10110111101110… |
… | …011011110110101 |
3 | 222212000021210101 |
4 | 112331303132311 |
5 | 1242114103110 |
6 | 102122154101 |
7 | 12355666540 |
oct | 2675633665 |
9 | 885007711 |
10 | 385300405 |
11 | 188545996 |
12 | a9052931 |
13 | 61a95909 |
14 | 39259857 |
15 | 23c5d13a |
hex | 16f737b5 |
385300405 has 16 divisors (see below), whose sum is σ = 529355520. Its totient is φ = 263734272.
The previous prime is 385300403. The next prime is 385300429. The reversal of 385300405 is 504003583.
It is a cyclic number.
It is not a de Polignac number, because 385300405 - 21 = 385300403 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (385300403) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10656 + ... + 29734.
It is an arithmetic number, because the mean of its divisors is an integer number (33084720).
Almost surely, 2385300405 is an apocalyptic number.
385300405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
385300405 is a deficient number, since it is larger than the sum of its proper divisors (144055115).
385300405 is a wasteful number, since it uses less digits than its factorization.
385300405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19668.
The product of its (nonzero) digits is 7200, while the sum is 28.
The square root of 385300405 is about 19629.0704059056. The cubic root of 385300405 is about 727.6677962680.
Adding to 385300405 its reverse (504003583), we get a palindrome (889303988).
The spelling of 385300405 in words is "three hundred eighty-five million, three hundred thousand, four hundred five".
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