Search a number
-
+
2986886340 = 223451843757
BaseRepresentation
bin1011001000001000…
…0100010011000100
321201011100112210000
42302002010103010
522104120330330
61212215201300
7134006054304
oct26202042304
97634315700
102986886340
1112a3023a09
126b4376230
13387a72689
14204991604
15127353560
hexb20844c4

2986886340 has 60 divisors (see below), whose sum is σ = 9369978156. Its totient is φ = 796502592.

The previous prime is 2986886327. The next prime is 2986886359. The reversal of 2986886340 is 436886892.

2986886340 is a `hidden beast` number, since 298 + 6 + 8 + 8 + 6 + 340 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2046114756 + 940771584 = 45234^2 + 30672^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 920259 + ... + 923498.

Almost surely, 22986886340 is an apocalyptic number.

2986886340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2986886340 is an abundant number, since it is smaller than the sum of its proper divisors (6383091816).

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

2986886340 is a wasteful number, since it uses less digits than its factorization.

2986886340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843778 (or 1843767 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The square root of 2986886340 is about 54652.4138533697. The cubic root of 2986886340 is about 1440.1450374746.

The spelling of 2986886340 in words is "two billion, nine hundred eighty-six million, eight hundred eighty-six thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 270 324 405 540 810 1620 1843757 3687514 5531271 7375028 9218785 11062542 16593813 18437570 22125084 27656355 33187626 36875140 49781439 55312710 66375252 82969065 99562878 110625420 149344317 165938130 199125756 248907195 298688634 331876260 497814390 597377268 746721585 995628780 1493443170 2986886340