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2288888888 = 2311138212437
BaseRepresentation
bin1000100001101101…
…1010110000111000
312220111221121021112
42020123122300320
514141423421023
61015042455452
7110502143306
oct21033326070
95814847245
102288888888
11a75022110
1253a664588
132a6284930
14179db9276
15d5e29478
hex886dac38

2288888888 has 64 divisors (see below), whose sum is σ = 5050170720. Its totient is φ = 958809600.

The previous prime is 2288888879. The next prime is 2288888911. The reversal of 2288888888 is 8888888822.

It is a nude number because it is divisible by every one of its digits.

2288888888 is a modest number, since divided by 88888 gives 22888 as remainder.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938006 + ... + 940442.

It is a self-describing number.

Almost surely, 22288888888 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 2288888888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2525085360).

2288888888 is an abundant number, since it is smaller than the sum of its proper divisors (2761281832).

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

2288888888 is a wasteful number, since it uses less digits than its factorization.

2288888888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288 (or 3284 counting only the distinct ones).

The product of its digits is 67108864, while the sum is 68.

The square root of 2288888888 is about 47842.3336387346. Note that the first 3 decimals coincide. The cubic root of 2288888888 is about 1317.8770757980.

The spelling of 2288888888 in words is "two billion, two hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 11 13 22 26 44 52 88 104 143 286 572 821 1144 1642 2437 3284 4874 6568 9031 9748 10673 18062 19496 21346 26807 31681 36124 42692 53614 63362 72248 85384 107228 117403 126724 214456 234806 253448 348491 469612 696982 939224 1393964 2000777 2787928 4001554 8003108 16006216 22008547 26010101 44017094 52020202 88034188 104040404 176068376 208080808 286111111 572222222 1144444444 2288888888