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2984220 = 2232559281
BaseRepresentation
bin1011011000100100011100
312121121120200
423120210130
51230443340
6143543500
734236231
oct13304434
95547520
102984220
1117590a8
12bbab90
13806415
14579788
153de330
hex2d891c

2984220 has 72 divisors (see below), whose sum is σ = 9238320. Its totient is φ = 779520.

The previous prime is 2984209. The next prime is 2984221. The reversal of 2984220 is 224892.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2984221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10480 + ... + 10760.

It is an arithmetic number, because the mean of its divisors is an integer number (128310).

22984220 is an apocalyptic number.

2984220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2984220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4619160).

2984220 is an abundant number, since it is smaller than the sum of its proper divisors (6254100).

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

2984220 is a wasteful number, since it uses less digits than its factorization.

2984220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2984220 is about 1727.4895079276. The cubic root of 2984220 is about 143.9716379327.

The spelling of 2984220 in words is "two million, nine hundred eighty-four thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 59 60 90 118 177 180 236 281 295 354 531 562 590 708 843 885 1062 1124 1180 1405 1686 1770 2124 2529 2655 2810 3372 3540 4215 5058 5310 5620 8430 10116 10620 12645 16579 16860 25290 33158 49737 50580 66316 82895 99474 149211 165790 198948 248685 298422 331580 497370 596844 746055 994740 1492110 2984220