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2004479980 = 225226944171
BaseRepresentation
bin111011101111001…
…1110111111101100
312011200210010121021
41313132132333230
513101121324410
6530522543524
7100446540646
oct16736367754
95150703537
102004479980
11939527528
1247b367ba4
1325c385539
14150303896
15bae99eda
hex7779efec

2004479980 has 24 divisors (see below), whose sum is σ = 4211358480. Its totient is φ = 801420480.

The previous prime is 2004479951. The next prime is 2004479987. The reversal of 2004479980 is 899744002.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2004479987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23295 + ... + 67465.

It is an arithmetic number, because the mean of its divisors is an integer number (175473270).

Almost surely, 22004479980 is an apocalyptic number.

2004479980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2004479980 is an abundant number, since it is smaller than the sum of its proper divisors (2206878500).

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

2004479980 is a wasteful number, since it uses less digits than its factorization.

2004479980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46449 (or 46447 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 2004479980 is about 44771.4192314695. The cubic root of 2004479980 is about 1260.8610852048.

The spelling of 2004479980 in words is "two billion, four million, four hundred seventy-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 2269 4538 9076 11345 22690 44171 45380 88342 176684 220855 441710 883420 100223999 200447998 400895996 501119995 1002239990 2004479980