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102147208080 = 243523291314871
BaseRepresentation
bin101111100100001110…
…0101011001110010000
3100202122210222210222220
41133020130223032100
53133144141124310
6114531545101040
710244205641241
oct1371034531620
9322583883886
10102147208080
113a358488335
1217968a87780
13982b618c78
144d302b8cc8
1529cc9c9670
hex17c872b390

102147208080 has 320 divisors, whose sum is σ = 344497950720. Its totient is φ = 24959334400.

The previous prime is 102147208073. The next prime is 102147208129. The reversal of 102147208080 is 80802741201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20968045 + ... + 20972915.

It is an arithmetic number, because the mean of its divisors is an integer number (1076556096).

Almost surely, 2102147208080 is an apocalyptic number.

102147208080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102147208080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172248975360).

102147208080 is an abundant number, since it is smaller than the sum of its proper divisors (242350742640).

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

102147208080 is a wasteful number, since it uses less digits than its factorization.

102147208080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070 (or 5064 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

Adding to 102147208080 its reverse (80802741201), we get a palindrome (182949949281).

The spelling of 102147208080 in words is "one hundred two billion, one hundred forty-seven million, two hundred eight thousand, eighty".