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2144964224 = 27132229433
BaseRepresentation
bin111111111011001…
…1000111010000000
312112111010110202102
41333312120322000
513343102323344
6552502005532
7104103616004
oct17766307200
95474113672
102144964224
11a0085a407
124ba4168a8
13282502100
14164c32704
15c8499e4e
hex7fd98e80

2144964224 has 96 divisors (see below), whose sum is σ = 4658100300. Its totient is φ = 983384064.

The previous prime is 2144964193. The next prime is 2144964229. The reversal of 2144964224 is 4224694412.

It can be written as a sum of positive squares in 6 ways, for example, as 377602624 + 1767361600 = 19432^2 + 42040^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144964229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4953512 + ... + 4953944.

Almost surely, 22144964224 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 2144964224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2329050150).

2144964224 is an abundant number, since it is smaller than the sum of its proper divisors (2513136076).

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

2144964224 is a wasteful number, since it uses less digits than its factorization.

2144964224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 677 counting only the distinct ones).

The product of its digits is 110592, while the sum is 38.

The square root of 2144964224 is about 46313.7584741295. The cubic root of 2144964224 is about 1289.6544201801.

The spelling of 2144964224 in words is "two billion, one hundred forty-four million, nine hundred sixty-four thousand, two hundred twenty-four".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 169 208 229 338 416 433 458 676 832 866 916 1352 1664 1732 1832 2704 2977 3464 3664 5408 5629 5954 6928 7328 10816 11258 11908 13856 14656 21632 22516 23816 27712 29312 38701 45032 47632 55424 73177 77402 90064 95264 99157 146354 154804 180128 190528 198314 292708 309608 360256 381056 396628 585416 619216 720512 793256 1170832 1238432 1289041 1586512 2341664 2476864 2578082 3173024 4683328 4953728 5156164 6346048 9366656 10312328 12692096 16757533 20624656 33515066 41249312 67030132 82498624 134060264 164997248 268120528 536241056 1072482112 2144964224