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14720860 = 225711379
BaseRepresentation
bin111000001001…
…111101011100
31000200220020001
4320021331130
512232031420
61243304044
7236060650
oct70117534
930626201
1014720860
118345000
124b1b024
13308558b
141d52a60
15145bb0a
hexe09f5c

14720860 has 96 divisors (see below), whose sum is σ = 39352320. Its totient is φ = 4530240.

The previous prime is 14720843. The next prime is 14720869. The reversal of 14720860 is 6802741.

14720860 is nontrivially palindromic in base 3.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14720869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186301 + ... + 186379.

It is an arithmetic number, because the mean of its divisors is an integer number (409920).

Almost surely, 214720860 is an apocalyptic number.

14720860 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 14720860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19676160).

14720860 is an abundant number, since it is smaller than the sum of its proper divisors (24631460).

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

14720860 is a wasteful number, since it uses less digits than its factorization.

14720860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 14720860 is about 3836.7772935108. Note that the first 3 decimals coincide. The cubic root of 14720860 is about 245.0817997025.

The spelling of 14720860 in words is "fourteen million, seven hundred twenty thousand, eight hundred sixty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 79 110 121 140 154 158 220 242 308 316 385 395 484 553 605 770 790 847 869 1106 1210 1331 1540 1580 1694 1738 2212 2420 2662 2765 3388 3476 4235 4345 5324 5530 6083 6655 8470 8690 9317 9559 11060 12166 13310 16940 17380 18634 19118 24332 26620 30415 37268 38236 46585 47795 60830 66913 93170 95590 105149 121660 133826 186340 191180 210298 267652 334565 420596 525745 669130 736043 1051490 1338260 1472086 2102980 2944172 3680215 7360430 14720860