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492613478740 = 22531378692249
BaseRepresentation
bin1110010101100100000…
…11010010100101010100
31202002112002011112222001
413022302003102211110
531032333022304430
61014145320245044
750406264324055
oct7126203224524
91662462145861
10492613478740
1117aa09514779
127b57b310784
13375b7a42636
1419bb221072c
15cc324193ca
hex72b20d2954

492613478740 has 24 divisors (see below), whose sum is σ = 1037793393000. Its totient is φ = 196415851008.

The previous prime is 492613478737. The next prime is 492613478761. The reversal of 492613478740 is 47874316294.

It can be written as a sum of positive squares in 4 ways, for example, as 8356153744 + 484257324996 = 91412^2 + 695886^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39339865 + ... + 39352384.

It is an arithmetic number, because the mean of its divisors is an integer number (43241391375).

Almost surely, 2492613478740 is an apocalyptic number.

It is an amenable number.

492613478740 is an abundant number, since it is smaller than the sum of its proper divisors (545179914260).

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

492613478740 is a wasteful number, since it uses less digits than its factorization.

492613478740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78692571 (or 78692569 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 492613478740 in words is "four hundred ninety-two billion, six hundred thirteen million, four hundred seventy-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 313 626 1252 1565 3130 6260 78692249 157384498 314768996 393461245 786922490 1573844980 24630673937 49261347874 98522695748 123153369685 246306739370 492613478740