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395470667 = 2331697299
BaseRepresentation
bin10111100100100…
…110011101001011
31000120010222202202
4113210212131023
51302220030132
6103124150415
712541305464
oct2744463513
91016128682
10395470667
11193261a69
12b053840b
1363c16b17
143a745d6b
1524abb762
hex1792674b

395470667 has 4 divisors (see below), whose sum is σ = 397168200. Its totient is φ = 393773136.

The previous prime is 395470633. The next prime is 395470697. The reversal of 395470667 is 766074593.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 395470667 - 210 = 395469643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395470697) 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, 848417 + ... + 848882.

It is an arithmetic number, because the mean of its divisors is an integer number (99292050).

Almost surely, 2395470667 is an apocalyptic number.

395470667 is a deficient number, since it is larger than the sum of its proper divisors (1697533).

395470667 is a wasteful number, since it uses less digits than its factorization.

395470667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697532.

The product of its (nonzero) digits is 952560, while the sum is 47.

The square root of 395470667 is about 19886.4443025896. Note that the first 3 decimals coincide. The cubic root of 395470667 is about 734.0147020940.

The spelling of 395470667 in words is "three hundred ninety-five million, four hundred seventy thousand, six hundred sixty-seven".

Divisors: 1 233 1697299 395470667