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102944704791889 = 4992203332
BaseRepresentation
bin10111011010000010101110…
…100011111000010101010001
3111111111102021110220012011001
4113122002232203320111101
5101443121223411320024
61002540051114022001
730453336515655142
oct2732025643702521
9444442243805131
10102944704791889
112a88a671101654
12b667459417901
13455984ab6689c
141b5c79c02dac9
15bd7c64853244
hex5da0ae8f8551

102944704791889 has 9 divisors (see below), whose sum is σ = 103156493589723. Its totient is φ = 102733349987112.

The previous prime is 102944704791883. The next prime is 102944704791913. The reversal of 102944704791889 is 988197407449201.

The square root of 102944704791889 is 10146167.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 99550606025025 + 3394098766864 = 9977505^2 + 1842308^2 .

It is not a de Polignac number, because 102944704791889 - 229 = 102944167920977 is a prime.

It is a super-2 number, since 2×1029447047918892 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102944704791883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5062927167 + ... + 5062947499.

Almost surely, 2102944704791889 is an apocalyptic number.

102944704791889 is the 10146167-th square number.

102944704791889 is the 5073084-th centered octagonal number.

It is an amenable number.

102944704791889 is a deficient number, since it is larger than the sum of its proper divisors (211788797834).

102944704791889 is an frugal number, since it uses more digits than its factorization.

102944704791889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41664 (or 20832 counting only the distinct ones).

The product of its (nonzero) digits is 292626432, while the sum is 73.

The spelling of 102944704791889 in words is "one hundred two trillion, nine hundred forty-four billion, seven hundred four million, seven hundred ninety-one thousand, eight hundred eighty-nine".

Divisors: 1 499 20333 249001 10146167 413430889 5062937333 206302013611 102944704791889