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20286357392 = 247269673339
BaseRepresentation
bin10010111001001010…
…010011111110010000
31221100210100201202002
4102321022103332100
5313021301414032
613152555013132
71315500123050
oct227112237620
957323321662
1020286357392
118670135624
123b21a3a1a8
131bb3b09b92
14da6347560
157dae82862
hex4b9293f90

20286357392 has 40 divisors (see below), whose sum is σ = 45086846400. Its totient is φ = 8661820032.

The previous prime is 20286357367. The next prime is 20286357419. The reversal of 20286357392 is 29375368202.

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, 306542 + ... + 366797.

It is an arithmetic number, because the mean of its divisors is an integer number (1127171160).

Almost surely, 220286357392 is an apocalyptic number.

It is an amenable number.

20286357392 is an abundant number, since it is smaller than the sum of its proper divisors (24800489008).

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

20286357392 is a wasteful number, since it uses less digits than its factorization.

20286357392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673623 (or 673617 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 20286357392 in words is "twenty billion, two hundred eighty-six million, three hundred fifty-seven thousand, three hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 269 538 1076 1883 2152 3766 4304 7532 15064 30128 673339 1346678 2693356 4713373 5386712 9426746 10773424 18853492 37706984 75413968 181128191 362256382 724512764 1267897337 1449025528 2535794674 2898051056 5071589348 10143178696 20286357392