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2988721008 = 2432713228077
BaseRepresentation
bin1011001000100100…
…0100001101110000
321201021210202110200
42302021010031300
522110103033013
61212322355200
7134030465220
oct26211041560
97637722420
102988721008
1112a4067369
126b4abbb00
13388265790
14204d0c080
151275b6e73
hexb2244370

2988721008 has 120 divisors (see below), whose sum is σ = 10294528608. Its totient is φ = 788230656.

The previous prime is 2988720983. The next prime is 2988721093. The reversal of 2988721008 is 8001278892.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100935 + ... + 127142.

Almost surely, 22988721008 is an apocalyptic number.

2988721008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2988721008 is an abundant number, since it is smaller than the sum of its proper divisors (7305807600).

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

2988721008 is a wasteful number, since it uses less digits than its factorization.

2988721008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228111 (or 228102 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 2988721008 is about 54669.1961528611. The cubic root of 2988721008 is about 1440.4398424900.

The spelling of 2988721008 in words is "two billion, nine hundred eighty-eight million, seven hundred twenty-one thousand, eight".

Divisors: 1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 36 39 42 48 52 56 63 72 78 84 91 104 112 117 126 144 156 168 182 208 234 252 273 312 336 364 468 504 546 624 728 819 936 1008 1092 1456 1638 1872 2184 3276 4368 6552 13104 228077 456154 684231 912308 1368462 1596539 1824616 2052693 2736924 2965001 3193078 3649232 4105386 4789617 5473848 5930002 6386156 8210772 8895003 9579234 10947696 11860004 12772312 14368851 16421544 17790006 19158468 20755007 23720008 25544624 26685009 28737702 32843088 35580012 38316936 41510014 47440016 53370018 57475404 62265021 71160024 76633872 83020028 106740036 114950808 124530042 142320048 166040056 186795063 213480072 229901616 249060084 332080112 373590126 426960144 498120168 747180252 996240336 1494360504 2988721008