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102143310244 = 2273349805857
BaseRepresentation
bin101111100100000110…
…1110011100110100100
3100202122112122210011121
41133020031303212210
53133142141411434
6114531325343324
710244130545263
oct1371015634644
9322575583147
10102143310244
113a356265888
1217967707b44
13982a882a61
144d2d9825da
1529cc4a97b4
hex17c83739a4

102143310244 has 12 divisors (see below), whose sum is σ = 181199434444. Its totient is φ = 50372043264.

The previous prime is 102143310233. The next prime is 102143310263. The reversal of 102143310244 is 442013341201.

It can be written as a sum of positive squares in 2 ways, for example, as 60634137600 + 41509172644 = 246240^2 + 203738^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174902637 + ... + 174903220.

Almost surely, 2102143310244 is an apocalyptic number.

It is an amenable number.

102143310244 is a deficient number, since it is larger than the sum of its proper divisors (79056124200).

102143310244 is a wasteful number, since it uses less digits than its factorization.

102143310244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349805934 (or 349805932 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 102143310244 its reverse (442013341201), we get a palindrome (544156651445).

The spelling of 102143310244 in words is "one hundred two billion, one hundred forty-three million, three hundred ten thousand, two hundred forty-four".

Divisors: 1 2 4 73 146 292 349805857 699611714 1399223428 25535827561 51071655122 102143310244