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288688996 = 221076431049
BaseRepresentation
bin10001001101010…
…000101101100100
3202010012220212001
4101031100231210
51042401021441
644351335044
710103546611
oct2115205544
9663186761
10288688996
11138a59352
1280821484
1347a6a5bb
142a4ab508
151a527731
hex11350b64

288688996 has 24 divisors (see below), whose sum is σ = 511207200. Its totient is φ = 142636992.

The previous prime is 288688991. The next prime is 288688999. The reversal of 288688996 is 699886882.

It is a super-2 number, since 2×2886889962 = 166682672822976032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (288688991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274680 + ... + 275728.

It is an arithmetic number, because the mean of its divisors is an integer number (21300300).

Almost surely, 2288688996 is an apocalyptic number.

It is an amenable number.

288688996 is a deficient number, since it is larger than the sum of its proper divisors (222518204).

288688996 is a wasteful number, since it uses less digits than its factorization.

288688996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803 (or 1801 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 64.

The square root of 288688996 is about 16990.8503612974. The cubic root of 288688996 is about 660.9116541460.

The spelling of 288688996 in words is "two hundred eighty-eight million, six hundred eighty-eight thousand, nine hundred ninety-six".

Divisors: 1 2 4 107 214 428 643 1049 1286 2098 2572 4196 68801 112243 137602 224486 275204 448972 674507 1349014 2698028 72172249 144344498 288688996