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10641680 = 245731613
BaseRepresentation
bin101000100110…
…000100010000
3202000122122022
4220212010100
510211013210
61020031012
7156311210
oct50460420
922018568
1010641680
116009285
123692468
13228796a
1415b0240
15e03155
hexa26110

10641680 has 80 divisors (see below), whose sum is σ = 29236224. Its totient is φ = 3525120.

The previous prime is 10641667. The next prime is 10641689. The reversal of 10641680 is 8614601.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×106416802 = 226490706444800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10641689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17054 + ... + 17666.

Almost surely, 210641680 is an apocalyptic number.

10641680 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 10641680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14618112).

10641680 is an abundant number, since it is smaller than the sum of its proper divisors (18594544).

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

10641680 is a wasteful number, since it uses less digits than its factorization.

10641680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 10641680 is about 3262.1587944182. The cubic root of 10641680 is about 219.9564652149.

It can be divided in two parts, 1064 and 1680, that added together give a cube (2744 = 143).

The spelling of 10641680 in words is "ten million, six hundred forty-one thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 31 35 40 56 62 70 80 112 124 140 155 217 248 280 310 434 496 560 613 620 868 1085 1226 1240 1736 2170 2452 2480 3065 3472 4291 4340 4904 6130 8582 8680 9808 12260 17164 17360 19003 21455 24520 34328 38006 42910 49040 68656 76012 85820 95015 133021 152024 171640 190030 266042 304048 343280 380060 532084 665105 760120 1064168 1330210 1520240 2128336 2660420 5320840 10641680