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11988088 = 237192593
BaseRepresentation
bin101101101110…
…110001111000
3211120001120021
4231232301320
511032104323
61104540224
7203616460
oct55566170
924501507
1011988088
116848912
124021674
132639758
141840ba0
1510bc05d
hexb6ec78

11988088 has 48 divisors (see below), whose sum is σ = 27157680. Its totient is φ = 4859136.

The previous prime is 11988061. The next prime is 11988091. The reversal of 11988088 is 88088911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19920 + ... + 20512.

It is an arithmetic number, because the mean of its divisors is an integer number (565785).

Almost surely, 211988088 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 11988088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13578840).

11988088 is an abundant number, since it is smaller than the sum of its proper divisors (15169592).

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

11988088 is a wasteful number, since it uses less digits than its factorization.

11988088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 43.

The square root of 11988088 is about 3462.3818391391. The cubic root of 11988088 is about 228.8670687857.

The spelling of 11988088 in words is "eleven million, nine hundred eighty-eight thousand, eighty-eight".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 361 532 593 722 1064 1186 1444 2372 2527 2888 4151 4744 5054 8302 10108 11267 16604 20216 22534 33208 45068 78869 90136 157738 214073 315476 428146 630952 856292 1498511 1712584 2997022 5994044 11988088