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389223204 = 223237917851
BaseRepresentation
bin10111001100110…
…001001100100100
31000010101120212020
4113030301030210
51244120120304
6102342223140
712434225346
oct2714611444
91003346766
10389223204
1118a785177
12aa424ab0
136283a2b6
143999b296
15242855d9
hex17331324

389223204 has 48 divisors (see below), whose sum is σ = 959723520. Its totient is φ = 122522400.

The previous prime is 389223203. The next prime is 389223217. The reversal of 389223204 is 402322983.

It is not an unprimeable number, because it can be changed into a prime (389223203) 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 15 ways as a sum of consecutive naturals, for example, 12879 + ... + 30729.

It is an arithmetic number, because the mean of its divisors is an integer number (19994240).

Almost surely, 2389223204 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 389223204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479861760).

389223204 is an abundant number, since it is smaller than the sum of its proper divisors (570500316).

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

389223204 is a wasteful number, since it uses less digits than its factorization.

389223204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17960 (or 17958 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 389223204 is about 19728.7405578765. The cubic root of 389223204 is about 730.1289595152.

The spelling of 389223204 in words is "three hundred eighty-nine million, two hundred twenty-three thousand, two hundred four".

Divisors: 1 2 3 4 6 12 23 46 69 79 92 138 158 237 276 316 474 948 1817 3634 5451 7268 10902 17851 21804 35702 53553 71404 107106 214212 410573 821146 1231719 1410229 1642292 2463438 2820458 4230687 4926876 5640916 8461374 16922748 32435267 64870534 97305801 129741068 194611602 389223204