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10668780 = 2233523859
BaseRepresentation
bin101000101100…
…101011101100
3202002000211000
4220230223230
510212400110
61020400300
7156453213
oct50545354
922060730
1010668780
116027681
1236a6090
1322970b5
1415ba07a
15e0b1c0
hexa2caec

10668780 has 96 divisors (see below), whose sum is σ = 34675200. Its totient is φ = 2718144.

The previous prime is 10668761. The next prime is 10668787. The reversal of 10668780 is 8786601.

10668780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×106687802 = 227645733376800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (10668787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11991 + ... + 12849.

It is an arithmetic number, because the mean of its divisors is an integer number (361200).

Almost surely, 210668780 is an apocalyptic number.

10668780 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 10668780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17337600).

10668780 is an abundant number, since it is smaller than the sum of its proper divisors (24006420).

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

10668780 is a wasteful number, since it uses less digits than its factorization.

10668780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 10668780 is about 3266.3098444575. The cubic root of 10668780 is about 220.1430199516.

It can be divided in two parts, 106 and 68780, that added together give a palindrome (68886).

The spelling of 10668780 in words is "ten million, six hundred sixty-eight thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 23 27 30 36 45 46 54 60 69 90 92 108 115 135 138 180 207 230 270 276 345 414 460 540 621 690 828 859 1035 1242 1380 1718 2070 2484 2577 3105 3436 4140 4295 5154 6210 7731 8590 10308 12420 12885 15462 17180 19757 23193 25770 30924 38655 39514 46386 51540 59271 77310 79028 92772 98785 115965 118542 154620 177813 197570 231930 237084 296355 355626 395140 463860 533439 592710 711252 889065 1066878 1185420 1778130 2133756 2667195 3556260 5334390 10668780