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389414304 = 253616693
BaseRepresentation
bin10111001101011…
…111110110100000
31000010202022000000
4113031133312200
51244142224204
6102350300000
712435652446
oct2715376640
91003668000
10389414304
1118a8a5804
12aa4b7600
13628a6286
1439a0ab96
15242c2039
hex1735fda0

389414304 has 84 divisors (see below), whose sum is σ = 1149532146. Its totient is φ = 129796992.

The previous prime is 389414297. The next prime is 389414309. The reversal of 389414304 is 403414983.

It can be written as a sum of positive squares in only one way, i.e., 382124304 + 7290000 = 19548^2 + 2700^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (389414309) 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 13 ways as a sum of consecutive naturals, for example, 14982 + ... + 31674.

Almost surely, 2389414304 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 389414304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574766073).

389414304 is an abundant number, since it is smaller than the sum of its proper divisors (760117842).

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

389414304 is an equidigital number, since it uses as much as digits as its factorization.

389414304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16721 (or 16698 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 389414304 is about 19733.5831515718. The cubic root of 389414304 is about 730.2484323643.

The spelling of 389414304 in words is "three hundred eighty-nine million, four hundred fourteen thousand, three hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 243 288 324 432 486 648 729 864 972 1296 1458 1944 2592 2916 3888 5832 7776 11664 16693 23328 33386 50079 66772 100158 133544 150237 200316 267088 300474 400632 450711 534176 600948 801264 901422 1201896 1352133 1602528 1802844 2403792 2704266 3605688 4056399 4807584 5408532 7211376 8112798 10817064 12169197 14422752 16225596 21634128 24338394 32451192 43268256 48676788 64902384 97353576 129804768 194707152 389414304