Search a number
-
+
389148752 = 2434916967
BaseRepresentation
bin10111001100011…
…111000001010000
31000010020210201202
4113030133001100
51244110230002
6102340450332
712433465316
oct2714370120
91003223652
10389148752
1118a734243
12aa3a99a8
1362812445
143997c0b6
152426d502
hex1731f050

389148752 has 20 divisors (see below), whose sum is σ = 754299936. Its totient is φ = 194490720.

The previous prime is 389148743. The next prime is 389148757. The reversal of 389148752 is 257841983.

It is a happy number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 389148697 and 389148706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389148757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52373 + ... + 59339.

Almost surely, 2389148752 is an apocalyptic number.

It is an amenable number.

389148752 is a deficient number, since it is larger than the sum of its proper divisors (365151184).

389148752 is a wasteful number, since it uses less digits than its factorization.

389148752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10466 (or 10460 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 389148752 is about 19726.8535757733. The cubic root of 389148752 is about 730.0824026577.

The spelling of 389148752 in words is "three hundred eighty-nine million, one hundred forty-eight thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 3491 6967 6982 13934 13964 27868 27928 55736 55856 111472 24321797 48643594 97287188 194574376 389148752