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102290660448 = 2531397665667
BaseRepresentation
bin101111101000011111…
…1111001110001100000
3100210000210220221122120
41133100333321301200
53133442402113243
6114554111504240
710250600160564
oct1372077716140
9323023827576
10102290660448
113a421458209
12179a8b28080
139852264822
144d4537b6a4
1529da3b3c83
hex17d0ff9c60

102290660448 has 48 divisors (see below), whose sum is σ = 270444767040. Its totient is φ = 33851581056.

The previous prime is 102290660447. The next prime is 102290660491. The reversal of 102290660448 is 844066092201.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102290660443) 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, 3819490 + ... + 3846177.

It is an arithmetic number, because the mean of its divisors is an integer number (5634265980).

Almost surely, 2102290660448 is an apocalyptic number.

It is an amenable number.

102290660448 is an abundant number, since it is smaller than the sum of its proper divisors (168154106592).

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

102290660448 is a wasteful number, since it uses less digits than its factorization.

102290660448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7665819 (or 7665811 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 102290660448 in words is "one hundred two billion, two hundred ninety million, six hundred sixty thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 139 278 417 556 834 1112 1668 2224 3336 4448 6672 13344 7665667 15331334 22997001 30662668 45994002 61325336 91988004 122650672 183976008 245301344 367952016 735904032 1065527713 2131055426 3196583139 4262110852 6393166278 8524221704 12786332556 17048443408 25572665112 34096886816 51145330224 102290660448