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28316478718 = 2113447137339
BaseRepresentation
bin11010010111110010…
…110010110011111110
32201002102110011100001
4122113302302303332
5430443004304333
621001452224514
72021465045353
oct322762626376
981072404301
1028316478718
1111010a06630
1255a316b13a
132893668268
141528a1262a
15b0ae2cb7d
hex697cb2cfe

28316478718 has 16 divisors (see below), whose sum is σ = 46338641280. Its totient is φ = 12870408600.

The previous prime is 28316478713. The next prime is 28316478739. The reversal of 28316478718 is 81787461382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28316478713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739693 + ... + 777031.

It is an arithmetic number, because the mean of its divisors is an integer number (2896165080).

Almost surely, 228316478718 is an apocalyptic number.

28316478718 is a deficient number, since it is larger than the sum of its proper divisors (18022162562).

28316478718 is a wasteful number, since it uses less digits than its factorization.

28316478718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71823.

The product of its digits is 3612672, while the sum is 55.

The spelling of 28316478718 in words is "twenty-eight billion, three hundred sixteen million, four hundred seventy-eight thousand, seven hundred eighteen".

Divisors: 1 2 11 22 34471 37339 68942 74678 379181 410729 758362 821458 1287112669 2574225338 14158239359 28316478718