Base | Representation |
---|---|
bin | 11000010100010… |
… | …101111011010001 |
3 | 1001102200211101220 |
4 | 120110111323101 |
5 | 1313421021443 |
6 | 104252315253 |
7 | 13052552121 |
oct | 3024257321 |
9 | 1042624356 |
10 | 407985873 |
11 | 19a32a909 |
12 | b4772b29 |
13 | 666a9479 |
14 | 3c282c81 |
15 | 25c3ea83 |
hex | 18515ed1 |
407985873 has 16 divisors (see below), whose sum is σ = 585426816. Its totient is φ = 251792640.
The previous prime is 407985871. The next prime is 407985883. The reversal of 407985873 is 378589704.
It is not a de Polignac number, because 407985873 - 21 = 407985871 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (51).
It is not an unprimeable number, because it can be changed into a prime (407985871) 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, 62461 + ... + 68682.
It is an arithmetic number, because the mean of its divisors is an integer number (36589176).
Almost surely, 2407985873 is an apocalyptic number.
It is an amenable number.
407985873 is a deficient number, since it is larger than the sum of its proper divisors (177440943).
407985873 is a wasteful number, since it uses less digits than its factorization.
407985873 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 131224.
The product of its (nonzero) digits is 1693440, while the sum is 51.
The square root of 407985873 is about 20198.6601783386. The cubic root of 407985873 is about 741.6773934624.
The spelling of 407985873 in words is "four hundred seven million, nine hundred eighty-five thousand, eight hundred seventy-three".
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