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3000081220 = 225467932059
BaseRepresentation
bin1011001011010001…
…1001101101000100
321202002011220202021
42302310121231010
522121010044340
61213410052524
7134226161323
oct26264315504
97662156667
103000081220
1112aa516474
126b887a144
1338a7124b6
142066280ba
151285ace4a
hexb2d19b44

3000081220 has 24 divisors (see below), whose sum is σ = 6301713600. Its totient is φ = 1199738592.

The previous prime is 3000081193. The next prime is 3000081223. The reversal of 3000081220 is 221800003.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3000081194 and 3000081203.

It is not an unprimeable number, because it can be changed into a prime (3000081223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77551 + ... + 109609.

It is an arithmetic number, because the mean of its divisors is an integer number (262571400).

Almost surely, 23000081220 is an apocalyptic number.

It is an amenable number.

3000081220 is an abundant number, since it is smaller than the sum of its proper divisors (3301632380).

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

3000081220 is a wasteful number, since it uses less digits than its factorization.

3000081220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36747 (or 36745 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 3000081220 is about 54772.9971792671. The cubic root of 3000081220 is about 1442.2625856911.

Adding to 3000081220 its reverse (221800003), we get a palindrome (3221881223).

The spelling of 3000081220 in words is "three billion, eighty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 4679 9358 18716 23395 32059 46790 64118 93580 128236 160295 320590 641180 150004061 300008122 600016244 750020305 1500040610 3000081220