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5286786890 = 257211980851
BaseRepresentation
bin1001110110001110…
…11111011101001010
3111122110000121012212
410323013133131022
541311404140030
62232334105122
7245003642600
oct47307373512
914573017185
105286786890
112273287270
12103664b1a2
136633b1488
143821d5870
1520e205595
hex13b1df74a

5286786890 has 48 divisors (see below), whose sum is σ = 12076249824. Its totient is φ = 1647828000.

The previous prime is 5286786881. The next prime is 5286786929. The reversal of 5286786890 is 986876825.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 485036 + ... + 495815.

It is an arithmetic number, because the mean of its divisors is an integer number (251588538).

Almost surely, 25286786890 is an apocalyptic number.

5286786890 is an abundant number, since it is smaller than the sum of its proper divisors (6789462934).

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

5286786890 is a wasteful number, since it uses less digits than its factorization.

5286786890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980883 (or 980876 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 59.

The square root of 5286786890 is about 72710.2942505392. The cubic root of 5286786890 is about 1742.0633128901.

The spelling of 5286786890 in words is "five billion, two hundred eighty-six million, seven hundred eighty-six thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 11 14 22 35 49 55 70 77 98 110 154 245 385 490 539 770 1078 2695 5390 980851 1961702 4904255 6865957 9808510 10789361 13731914 21578722 34329785 48061699 53946805 68659570 75525527 96123398 107893610 151051054 240308495 377627635 480616990 528678689 755255270 1057357378 2643393445 5286786890