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204042080 = 25511115933
BaseRepresentation
bin11000010100101…
…10111101100000
3112012221102010002
430022112331200
5404213321310
632125155132
75025220604
oct1412267540
9465842102
10204042080
11a51a3920
12583bbaa8
1333371078
141d155504
1512da6da5
hexc296f60

204042080 has 48 divisors (see below), whose sum is σ = 525876624. Its totient is φ = 74196480.

The previous prime is 204042079. The next prime is 204042127. The reversal of 204042080 is 80240402.

204042080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56207 + ... + 59726.

It is an arithmetic number, because the mean of its divisors is an integer number (10955763).

Almost surely, 2204042080 is an apocalyptic number.

204042080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204042080 is an abundant number, since it is smaller than the sum of its proper divisors (321834544).

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

204042080 is a wasteful number, since it uses less digits than its factorization.

204042080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115959 (or 115951 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 204042080 is about 14284.3298757765. The cubic root of 204042080 is about 588.7170052266.

Adding to 204042080 its reverse (80240402), we get a palindrome (284282482).

The spelling of 204042080 in words is "two hundred four million, forty-two thousand, eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 880 1760 115933 231866 463732 579665 927464 1159330 1275263 1854928 2318660 2550526 3709856 4637320 5101052 6376315 9274640 10202104 12752630 18549280 20404208 25505260 40808416 51010520 102021040 204042080