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204057180 = 223251133651
BaseRepresentation
bin11000010100110…
…10101001011100
3112012222011211100
430022122221130
5404214312210
632125353100
75025312615
oct1412325134
9465864740
10204057180
11a52041a8
1258408790
1333377bc2
141d15ac0c
1512dab5c0
hexc29aa5c

204057180 has 36 divisors (see below), whose sum is σ = 618973992. Its totient is φ = 54415200.

The previous prime is 204057179. The next prime is 204057181. The reversal of 204057180 is 81750402.

It is an interprime number because it is at equal distance from previous prime (204057179) and next prime (204057181).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204057181) 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 11 ways as a sum of consecutive naturals, for example, 566646 + ... + 567005.

It is an arithmetic number, because the mean of its divisors is an integer number (17193722).

Almost surely, 2204057180 is an apocalyptic number.

204057180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204057180 is an abundant number, since it is smaller than the sum of its proper divisors (414916812).

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

204057180 is a wasteful number, since it uses less digits than its factorization.

204057180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133666 (or 1133661 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 204057180 is about 14284.8584172193. The cubic root of 204057180 is about 588.7315274067.

The spelling of 204057180 in words is "two hundred four million, fifty-seven thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1133651 2267302 3400953 4534604 5668255 6801906 10202859 11336510 13603812 17004765 20405718 22673020 34009530 40811436 51014295 68019060 102028590 204057180