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220020192 = 2533725197
BaseRepresentation
bin11010001110100…
…11110111100000
3120100000011222000
431013103313200
5422311121232
633455444000
75311066200
oct1507236740
9510004860
10220020192
11103217477
1261826600
1336776982
1421314400
15144b127c
hexd1d3de0

220020192 has 144 divisors (see below), whose sum is σ = 746640720. Its totient is φ = 62850816.

The previous prime is 220020191. The next prime is 220020217. The reversal of 220020192 is 291020022.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220020191) 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, 39738 + ... + 44934.

It is an arithmetic number, because the mean of its divisors is an integer number (5185005).

Almost surely, 2220020192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220020192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373320360).

220020192 is an abundant number, since it is smaller than the sum of its proper divisors (526620528).

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

220020192 is a wasteful number, since it uses less digits than its factorization.

220020192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5230 (or 5209 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 220020192 is about 14833.0776307549. The cubic root of 220020192 is about 603.6995420969.

The spelling of 220020192 in words is "two hundred twenty million, twenty thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 72 84 96 98 108 112 126 144 147 168 189 196 216 224 252 288 294 336 378 392 432 441 504 588 672 756 784 864 882 1008 1176 1323 1512 1568 1764 2016 2352 2646 3024 3528 4704 5197 5292 6048 7056 10394 10584 14112 15591 20788 21168 31182 36379 41576 42336 46773 62364 72758 83152 93546 109137 124728 140319 145516 166304 187092 218274 249456 254653 280638 291032 327411 374184 436548 498912 509306 561276 582064 654822 748368 763959 873096 982233 1018612 1122552 1164128 1309644 1496736 1527918 1746192 1964466 2037224 2245104 2291877 2619288 3055836 3492384 3928932 4074448 4490208 4583754 5238576 6111672 6875631 7857864 8148896 9167508 10477152 12223344 13751262 15715728 18335016 24446688 27502524 31431456 36670032 55005048 73340064 110010096 220020192