Search a number
-
+
396048973 = 2331699781
BaseRepresentation
bin10111100110110…
…011101001001101
31000121020101001111
4113212303221031
51302342031343
6103144412021
712546234505
oct2746635115
91017211044
10396048973
11193617501
12b0777011
136408a108
143a856a05
1524b82c9d
hex179b3a4d

396048973 has 4 divisors (see below), whose sum is σ = 397748988. Its totient is φ = 394348960.

The previous prime is 396048967. The next prime is 396049007. The reversal of 396048973 is 379840693.

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

It can be written as a sum of positive squares in 2 ways, for example, as 57562569 + 338486404 = 7587^2 + 18398^2 .

It is a cyclic number.

It is not a de Polignac number, because 396048973 - 25 = 396048941 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396048773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849658 + ... + 850123.

It is an arithmetic number, because the mean of its divisors is an integer number (99437247).

Almost surely, 2396048973 is an apocalyptic number.

It is an amenable number.

396048973 is a deficient number, since it is larger than the sum of its proper divisors (1700015).

396048973 is a wasteful number, since it uses less digits than its factorization.

396048973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700014.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 396048973 is about 19900.9791970144. The cubic root of 396048973 is about 734.3723167863.

The spelling of 396048973 in words is "three hundred ninety-six million, forty-eight thousand, nine hundred seventy-three".

Divisors: 1 233 1699781 396048973