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12784740590740 = 2255312061076029
BaseRepresentation
bin1011101000001010110111…
…1010111110010010010100
31200021012122112221112111011
42322002231322332102110
53133431122042400430
643105121224222004
72456444534663626
oct272025572762224
950235575845434
1012784740590740
114089a83847568
12152592790a904
13719799164ac1
14322adb4b4c16
1517286175b22a
hexba0adebe494

12784740590740 has 24 divisors (see below), whose sum is σ = 27354520436040. Its totient is φ = 5017407627648.

The previous prime is 12784740590689. The next prime is 12784740590759. The reversal of 12784740590740 is 4709504748721.

It can be written as a sum of positive squares in 4 ways, for example, as 922268281104 + 11862472309636 = 960348^2 + 3444194^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6030536955 + ... + 6030539074.

It is an arithmetic number, because the mean of its divisors is an integer number (1139771684835).

Almost surely, 212784740590740 is an apocalyptic number.

12784740590740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12784740590740 is an abundant number, since it is smaller than the sum of its proper divisors (14569779845300).

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

12784740590740 is a wasteful number, since it uses less digits than its factorization.

12784740590740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12061076091 (or 12061076089 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 58.

The spelling of 12784740590740 in words is "twelve trillion, seven hundred eighty-four billion, seven hundred forty million, five hundred ninety thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 12061076029 24122152058 48244304116 60305380145 120610760290 241221520580 639237029537 1278474059074 2556948118148 3196185147685 6392370295370 12784740590740