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10663680 = 28352777
BaseRepresentation
bin101000101011…
…011100000000
3202001202211010
4220223130000
510212214210
61020320520
7156432306
oct50533400
922052733
1010663680
116023865
1236a3140
132294991
1415b8276
15e09920
hexa2b700

10663680 has 72 divisors (see below), whose sum is σ = 34069392. Its totient is φ = 2842624.

The previous prime is 10663661. The next prime is 10663687. The reversal of 10663680 is 8636601.

It is a super-2 number, since 2×106636802 = 227428142284800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10663687) 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, 2452 + ... + 5228.

It is an arithmetic number, because the mean of its divisors is an integer number (473186).

Almost surely, 210663680 is an apocalyptic number.

10663680 is a gapful number since it is divisible by the number (10) 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 10663680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17034696).

10663680 is an abundant number, since it is smaller than the sum of its proper divisors (23405712).

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

10663680 is an equidigital number, since it uses as much as digits as its factorization.

10663680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801 (or 2787 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 10663680 is about 3265.5290536144. The cubic root of 10663680 is about 220.1079360167.

The spelling of 10663680 in words is "ten million, six hundred sixty-three thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 640 768 960 1280 1920 2777 3840 5554 8331 11108 13885 16662 22216 27770 33324 41655 44432 55540 66648 83310 88864 111080 133296 166620 177728 222160 266592 333240 355456 444320 533184 666480 710912 888640 1066368 1332960 1777280 2132736 2665920 3554560 5331840 10663680