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10811680 = 255116143
BaseRepresentation
bin101001001111…
…100100100000
3202100021211121
4221033210200
510231433210
61023422024
7160616635
oct51174440
922307747
1010811680
116114a80
123754914
132317159
14161618c
15e386da
hexa4f920

10811680 has 48 divisors (see below), whose sum is σ = 27869184. Its totient is φ = 3930880.

The previous prime is 10811657. The next prime is 10811683. The reversal of 10811680 is 8611801.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10811683) 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, 1312 + ... + 4831.

It is an arithmetic number, because the mean of its divisors is an integer number (580608).

Almost surely, 210811680 is an apocalyptic number.

10811680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10811680 is an abundant number, since it is smaller than the sum of its proper divisors (17057504).

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

10811680 is a wasteful number, since it uses less digits than its factorization.

10811680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6169 (or 6161 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 10811680 is about 3288.1119202363. Note that the first 3 decimals coincide. The cubic root of 10811680 is about 221.1215454469.

The spelling of 10811680 in words is "ten million, eight hundred eleven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 880 1760 6143 12286 24572 30715 49144 61430 67573 98288 122860 135146 196576 245720 270292 337865 491440 540584 675730 982880 1081168 1351460 2162336 2702920 5405840 10811680