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204010144 = 25131953487
BaseRepresentation
bin11000010100011…
…11001010100000
3112012212210022021
430022033022200
5404211311034
632124351224
75025025522
oct1412171240
9465783267
10204010144
11a5181928
12583a5514
133335c680
141d147a12
1512d9c6b4
hexc28f2a0

204010144 has 96 divisors (see below), whose sum is σ = 464849280. Its totient is φ = 87340032.

The previous prime is 204010139. The next prime is 204010151. The reversal of 204010144 is 441010402.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418669 + ... + 419155.

It is an arithmetic number, because the mean of its divisors is an integer number (4842180).

Almost surely, 2204010144 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 204010144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232424640).

204010144 is an abundant number, since it is smaller than the sum of its proper divisors (260839136).

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

204010144 is a wasteful number, since it uses less digits than its factorization.

204010144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 204010144 is about 14283.2119637006. The cubic root of 204010144 is about 588.6862889363.

Adding to 204010144 its reverse (441010402), we get a palindrome (645020546).

The spelling of 204010144 in words is "two hundred four million, ten thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 16 19 26 32 38 52 53 76 104 106 152 208 212 247 304 416 424 487 494 608 689 848 974 988 1007 1378 1696 1948 1976 2014 2756 3896 3952 4028 5512 6331 7792 7904 8056 9253 11024 12662 13091 15584 16112 18506 22048 25324 25811 26182 32224 37012 50648 51622 52364 74024 101296 103244 104728 120289 148048 202592 206488 209456 240578 296096 335543 412976 418912 481156 490409 671086 825952 962312 980818 1342172 1924624 1961636 2684344 3849248 3923272 5368688 6375317 7846544 10737376 12750634 15693088 25501268 51002536 102005072 204010144