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102426731984 = 246401670749
BaseRepresentation
bin101111101100100011…
…0111110010111010000
3100210101021222002201002
41133121012332113100
53134232220410414
6115015412201132
710254141566603
oct1373106762720
9323337862632
10102426731984
113a491246825
1217a266091a8
1398744c7a25
144d5947c33a
1529e72e14de
hex17d91be5d0

102426731984 has 10 divisors (see below), whose sum is σ = 198451793250. Its totient is φ = 51213365984.

The previous prime is 102426731963. The next prime is 102426732013. The reversal of 102426731984 is 489137624201.

It can be written as a sum of positive squares in only one way, i.e., 102190187584 + 236544400 = 319672^2 + 15380^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200835359 + ... + 3200835390.

It is an arithmetic number, because the mean of its divisors is an integer number (19845179325).

Almost surely, 2102426731984 is an apocalyptic number.

It is an amenable number.

102426731984 is a deficient number, since it is larger than the sum of its proper divisors (96025061266).

102426731984 is an equidigital number, since it uses as much as digits as its factorization.

102426731984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6401670757 (or 6401670751 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 102426731984 in words is "one hundred two billion, four hundred twenty-six million, seven hundred thirty-one thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 6401670749 12803341498 25606682996 51213365992 102426731984