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2224211040 = 253251798629
BaseRepresentation
bin1000010010010010…
…1100010001100000
312202000020121221200
42010210230101200
514023344223130
61004412321200
7106055324202
oct20444542140
95660217850
102224211040
11a41566747
12520a73200
13295a5a70c
14171580772
15d0400760
hex8492c460

2224211040 has 144 divisors (see below), whose sum is σ = 7633407600. Its totient is φ = 589741056.

The previous prime is 2224211023. The next prime is 2224211047. The reversal of 2224211040 is 401124222.

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

It is a super-2 number, since 2×22242110402 = 9894229500915763200, which contains 22 as substring.

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 (2224211047) 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, 253446 + ... + 262074.

It is an arithmetic number, because the mean of its divisors is an integer number (53009775).

Almost surely, 22224211040 is an apocalyptic number.

2224211040 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 2224211040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3816703800).

2224211040 is an abundant number, since it is smaller than the sum of its proper divisors (5409196560).

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

2224211040 is a wasteful number, since it uses less digits than its factorization.

2224211040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8829 (or 8818 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2224211040 is about 47161.5419595246. The cubic root of 2224211040 is about 1305.3450622291.

Adding to 2224211040 its reverse (401124222), we get a palindrome (2625335262).

The spelling of 2224211040 in words is "two billion, two hundred twenty-four million, two hundred eleven thousand, forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 179 180 240 288 358 360 480 537 716 720 895 1074 1432 1440 1611 1790 2148 2685 2864 3222 3580 4296 5370 5728 6444 7160 8055 8592 8629 10740 12888 14320 16110 17184 17258 21480 25776 25887 28640 32220 34516 42960 43145 51552 51774 64440 69032 77661 85920 86290 103548 128880 129435 138064 155322 172580 207096 257760 258870 276128 310644 345160 388305 414192 517740 621288 690320 776610 828384 1035480 1242576 1380640 1544591 1553220 2070960 2485152 3089182 3106440 4141920 4633773 6178364 6212880 7722955 9267546 12356728 12425760 13901319 15445910 18535092 23168865 24713456 27802638 30891820 37070184 46337730 49426912 55605276 61783640 69506595 74140368 92675460 111210552 123567280 139013190 148280736 185350920 222421104 247134560 278026380 370701840 444842208 556052760 741403680 1112105520 2224211040