Search a number
-
+
390065384 = 23431133911
BaseRepresentation
bin10111001111111…
…110110011101000
31000011222101010002
4113033332303220
51244324043014
6102412242132
712444333602
oct2717766350
91004871102
10390065384
111901aa995
12aa770348
1362a73727
1439b3a172
152439edde
hex173fece8

390065384 has 16 divisors (see below), whose sum is σ = 748381920. Its totient is φ = 190496880.

The previous prime is 390065371. The next prime is 390065411. The reversal of 390065384 is 483560093.

It is a super-3 number, since 3×3900653843 (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566612 + ... + 567299.

It is an arithmetic number, because the mean of its divisors is an integer number (46773870).

Almost surely, 2390065384 is an apocalyptic number.

It is an amenable number.

390065384 is a deficient number, since it is larger than the sum of its proper divisors (358316536).

390065384 is a wasteful number, since it uses less digits than its factorization.

390065384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133960 (or 1133956 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 390065384 is about 19750.0730125233. The cubic root of 390065384 is about 730.6551846027.

The spelling of 390065384 in words is "three hundred ninety million, sixty-five thousand, three hundred eighty-four".

Divisors: 1 2 4 8 43 86 172 344 1133911 2267822 4535644 9071288 48758173 97516346 195032692 390065384