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288395968 = 2672412243
BaseRepresentation
bin10001001100001…
…001001011000000
3202002200000220011
4101030021023000
51042312132333
644341154304
710101216400
oct2114111300
9662600804
10288395968
11138879183
12806bb994
1347997103
142a432800
151a4ba9cd
hex113092c0

288395968 has 84 divisors (see below), whose sum is σ = 682261272. Its totient is φ = 120529920.

The previous prime is 288395963. The next prime is 288395977. The reversal of 288395968 is 869593882.

It is not an unprimeable number, because it can be changed into a prime (288395963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127455 + ... + 129697.

It is an arithmetic number, because the mean of its divisors is an integer number (8122158).

Almost surely, 2288395968 is an apocalyptic number.

288395968 is a gapful number since it is divisible by the number (28) 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 288395968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341130636).

288395968 is an abundant number, since it is smaller than the sum of its proper divisors (393865304).

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

288395968 is a wasteful number, since it uses less digits than its factorization.

288395968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310 (or 2293 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 58.

The square root of 288395968 is about 16982.2250603388. The cubic root of 288395968 is about 660.6879633862.

The spelling of 288395968 in words is "two hundred eighty-eight million, three hundred ninety-five thousand, nine hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 41 49 56 64 82 98 112 164 196 224 287 328 392 448 574 656 784 1148 1312 1568 2009 2243 2296 2624 3136 4018 4486 4592 8036 8972 9184 15701 16072 17944 18368 31402 32144 35888 62804 64288 71776 91963 109907 125608 128576 143552 183926 219814 251216 367852 439628 502432 643741 735704 879256 1004864 1287482 1471408 1758512 2574964 2942816 3517024 4506187 5149928 5885632 7034048 9012374 10299856 18024748 20599712 36049496 41199424 72098992 144197984 288395968