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13440505242 = 232977244283
BaseRepresentation
bin11001000010001110…
…11101010110011010
31021200200200102001110
430201013131112122
5210011232131432
610101404401150
7654032260323
oct144107352632
937620612043
1013440505242
1157778a657a
1227312461b6
131362725aa8
1491707544a
15539e66dcc
hex3211dd59a

13440505242 has 16 divisors (see below), whose sum is σ = 27807942240. Its totient is φ = 4325679792.

The previous prime is 13440505223. The next prime is 13440505289. The reversal of 13440505242 is 24250504431.

13440505242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 38621968 + ... + 38622315.

It is an arithmetic number, because the mean of its divisors is an integer number (1737996390).

Almost surely, 213440505242 is an apocalyptic number.

13440505242 is an abundant number, since it is smaller than the sum of its proper divisors (14367436998).

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

13440505242 is a wasteful number, since it uses less digits than its factorization.

13440505242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77244317.

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 13440505242 in words is "thirteen billion, four hundred forty million, five hundred five thousand, two hundred forty-two".

Divisors: 1 2 3 6 29 58 87 174 77244283 154488566 231732849 463465698 2240084207 4480168414 6720252621 13440505242