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2246221680 = 243529734421
BaseRepresentation
bin1000010111100010…
…1001111101110000
312210112122212212120
42011320221331300
514100013043210
61010520154240
7106443366153
oct20570517560
95715585776
102246221680
11a52a2a65a
12528308980
1329a496071
1417446dc9a
15d22ec270
hex85e29f70

2246221680 has 160 divisors (see below), whose sum is σ = 7303728960. Its totient is φ = 570286080.

The previous prime is 2246221661. The next prime is 2246221739. The reversal of 2246221680 is 861226422.

2246221680 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505870 + ... + 510290.

It is an arithmetic number, because the mean of its divisors is an integer number (45648306).

Almost surely, 22246221680 is an apocalyptic number.

2246221680 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 2246221680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3651864480).

2246221680 is an abundant number, since it is smaller than the sum of its proper divisors (5057507280).

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

2246221680 is a wasteful number, since it uses less digits than its factorization.

2246221680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539 (or 4533 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 2246221680 is about 47394.3211788079. The cubic root of 2246221680 is about 1309.6368047003.

The spelling of 2246221680 in words is "two billion, two hundred forty-six million, two hundred twenty-one thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 29 30 40 48 58 60 73 80 87 116 120 145 146 174 219 232 240 290 292 348 365 435 438 464 580 584 696 730 870 876 1095 1160 1168 1392 1460 1740 1752 2117 2190 2320 2920 3480 3504 4234 4380 4421 5840 6351 6960 8468 8760 8842 10585 12702 13263 16936 17520 17684 21170 22105 25404 26526 31755 33872 35368 42340 44210 50808 53052 63510 66315 70736 84680 88420 101616 106104 127020 128209 132630 169360 176840 212208 254040 256418 265260 322733 353680 384627 508080 512836 530520 641045 645466 769254 968199 1025672 1061040 1282090 1290932 1538508 1613665 1923135 1936398 2051344 2564180 2581864 3077016 3227330 3846270 3872796 4840995 5128360 5163728 6154032 6454660 7692540 7745592 9359257 9681990 10256720 12909320 15385080 15491184 18718514 19363980 25818640 28077771 30770160 37437028 38727960 46796285 56155542 74874056 77455920 93592570 112311084 140388855 149748112 187185140 224622168 280777710 374370280 449244336 561555420 748740560 1123110840 2246221680