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2231013200 = 2452134091049
BaseRepresentation
bin1000010011111010…
…1000111101010000
312202111001012202112
42010332220331100
514032114410300
61005214204452
7106200204443
oct20476507520
95674035675
102231013200
11a45392269
125231b3728
1329729c870
1417243165a
15d0ce5e35
hex84fa8f50

2231013200 has 120 divisors (see below), whose sum is σ = 5791947000. Its totient is φ = 820961280.

The previous prime is 2231013097. The next prime is 2231013223. The reversal of 2231013200 is 23101322.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 134838544 + 2096174656 = 11612^2 + 45784^2 .

It is a super-3 number, since 3×22310132003 (a number of 29 digits) contains 333 as substring.

It is a congruent 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, 2126276 + ... + 2127324.

It is an arithmetic number, because the mean of its divisors is an integer number (48266225).

Almost surely, 22231013200 is an apocalyptic number.

2231013200 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 2231013200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2895973500).

2231013200 is an abundant number, since it is smaller than the sum of its proper divisors (3560933800).

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

2231013200 is a wasteful number, since it uses less digits than its factorization.

2231013200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2231013200 is about 47233.6024457165. The cubic root of 2231013200 is about 1306.6743919901.

Adding to 2231013200 its reverse (23101322), we get a palindrome (2254114522).

The spelling of 2231013200 in words is "two billion, two hundred thirty-one million, thirteen thousand, two hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 130 200 208 260 325 400 409 520 650 818 1040 1049 1300 1636 2045 2098 2600 3272 4090 4196 5200 5245 5317 6544 8180 8392 10225 10490 10634 13637 16360 16784 20450 20980 21268 26225 26585 27274 32720 40900 41960 42536 52450 53170 54548 68185 81800 83920 85072 104900 106340 109096 132925 136370 163600 209800 212680 218192 265850 272740 340925 419600 425360 429041 531700 545480 681850 858082 1063400 1090960 1363700 1716164 2126800 2145205 2727400 3432328 4290410 5454800 5577533 6864656 8580820 10726025 11155066 17161640 21452050 22310132 27887665 34323280 42904100 44620264 55775330 85808200 89240528 111550660 139438325 171616400 223101320 278876650 446202640 557753300 1115506600 2231013200