Search a number
-
+
389173248 = 212351723
BaseRepresentation
bin10111001100100…
…101000000000000
31000010022001100000
4113030211000000
51244112020443
6102341200000
712433626612
oct2714450000
91003261300
10389173248
1118a750692
12aa400000
1362820639
1439986db2
15242758d3
hex17325000

389173248 has 312 divisors, whose sum is σ = 1288018368. Its totient is φ = 116785152.

The previous prime is 389173201. The next prime is 389173283. The reversal of 389173248 is 842371983.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16920565 + ... + 16920587.

It is an arithmetic number, because the mean of its divisors is an integer number (4128264).

Almost surely, 2389173248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389173248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644009184).

389173248 is an abundant number, since it is smaller than the sum of its proper divisors (898845120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389173248 is an equidigital number, since it uses as much as digits as its factorization.

389173248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 45 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 389173248 is about 19727.4744455544. The cubic root of 389173248 is about 730.0977213272.

The spelling of 389173248 in words is "three hundred eighty-nine million, one hundred seventy-three thousand, two hundred forty-eight".