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2808147008 = 26595691307
BaseRepresentation
bin1010011101100000…
…1110110001000000
321020201000122111202
42213120032301000
521222341201013
61142352200332
7126405566342
oct24730166100
97221018452
102808147008
111211142457
126645390a8
13359a20564
141c8d45292
151167e8858
hexa760ec40

2808147008 has 56 divisors (see below), whose sum is σ = 5681167200. Its totient is φ = 1376795648.

The previous prime is 2808147007. The next prime is 2808147037. The reversal of 2808147008 is 8007418082.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2808147007) 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 7 ways as a sum of consecutive naturals, for example, 2147891 + ... + 2149197.

Almost surely, 22808147008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2808147008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2840583600).

2808147008 is an abundant number, since it is smaller than the sum of its proper divisors (2873020192).

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

2808147008 is a wasteful number, since it uses less digits than its factorization.

2808147008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 2808147008 is about 52991.9522946645. The cubic root of 2808147008 is about 1410.8254322178.

The spelling of 2808147008 in words is "two billion, eight hundred eight million, one hundred forty-seven thousand, eight".

Divisors: 1 2 4 8 16 32 59 64 118 236 472 569 944 1138 1307 1888 2276 2614 3776 4552 5228 9104 10456 18208 20912 33571 36416 41824 67142 77113 83648 134284 154226 268568 308452 537136 616904 743683 1074272 1233808 1487366 2148544 2467616 2974732 4935232 5949464 11898928 23797856 43877297 47595712 87754594 175509188 351018376 702036752 1404073504 2808147008