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18975834410 = 2513145967957
BaseRepresentation
bin10001101011000011…
…000100000100101010
31210222110101021011212
4101223003010010222
5302330303200120
612414541553122
71241144634251
oct215303040452
953873337155
1018975834410
118058400285
123816b757a2
131a354592b0
14cc0287798
15760db46c5
hex46b0c412a

18975834410 has 16 divisors (see below), whose sum is σ = 36783925416. Its totient is φ = 7006461888.

The previous prime is 18975834391. The next prime is 18975834443. The reversal of 18975834410 is 1443857981.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16591758481 + 2384075929 = 128809^2 + 48827^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72983849 + ... + 72984108.

Almost surely, 218975834410 is an apocalyptic number.

18975834410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18975834410 is a deficient number, since it is larger than the sum of its proper divisors (17808091006).

18975834410 is a wasteful number, since it uses less digits than its factorization.

18975834410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145967977.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 18975834410 in words is "eighteen billion, nine hundred seventy-five million, eight hundred thirty-four thousand, four hundred ten".

Divisors: 1 2 5 10 13 26 65 130 145967957 291935914 729839785 1459679570 1897583441 3795166882 9487917205 18975834410