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204048040 = 2357728743
BaseRepresentation
bin11000010100110…
…00011010101000
3112012221201021211
430022120122220
5404214014130
632125242504
75025244150
oct1412303250
9465851254
10204048040
11a51a8349
1258403434
13333739b1
141d157760
1512da8a2a
hexc2986a8

204048040 has 32 divisors (see below), whose sum is σ = 524695680. Its totient is φ = 69959232.

The previous prime is 204048017. The next prime is 204048041. The reversal of 204048040 is 40840402.

It is not an unprimeable number, because it can be changed into a prime (204048041) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 364092 + ... + 364651.

It is an arithmetic number, because the mean of its divisors is an integer number (16396740).

Almost surely, 2204048040 is an apocalyptic number.

204048040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204048040 is an abundant number, since it is smaller than the sum of its proper divisors (320647640).

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

204048040 is a wasteful number, since it uses less digits than its factorization.

204048040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728761 (or 728757 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 204048040 is about 14284.5384944702. The cubic root of 204048040 is about 588.7227372455.

Adding to 204048040 its reverse (40840402), we get a palindrome (244888442).

The spelling of 204048040 in words is "two hundred four million, forty-eight thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 728743 1457486 2914972 3643715 5101201 5829944 7287430 10202402 14574860 20404804 25506005 29149720 40809608 51012010 102024020 204048040