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14807820 = 2235475989
BaseRepresentation
bin111000011111…
…001100001100
31000212022111210
4320133030030
512242322240
61245214420
7236602326
oct70371414
930768453
1014807820
1183a4375
124b61410
1330b6031
141d76616
151477780
hexe1f30c

14807820 has 96 divisors (see below), whose sum is σ = 43545600. Its totient is φ = 3756544.

The previous prime is 14807813. The next prime is 14807843. The reversal of 14807820 is 2870841.

14807820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166336 + ... + 166424.

It is an arithmetic number, because the mean of its divisors is an integer number (453600).

Almost surely, 214807820 is an apocalyptic number.

14807820 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 14807820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21772800).

14807820 is an abundant number, since it is smaller than the sum of its proper divisors (28737780).

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

14807820 is a wasteful number, since it uses less digits than its factorization.

14807820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 14807820 is about 3848.0930342184. The cubic root of 14807820 is about 245.5634401472.

The spelling of 14807820 in words is "fourteen million, eight hundred seven thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 47 59 60 89 94 118 141 177 178 188 235 236 267 282 295 354 356 445 470 534 564 590 705 708 885 890 940 1068 1180 1335 1410 1770 1780 2670 2773 2820 3540 4183 5251 5340 5546 8319 8366 10502 11092 12549 13865 15753 16638 16732 20915 21004 25098 26255 27730 31506 33276 41595 41830 50196 52510 55460 62745 63012 78765 83190 83660 105020 125490 157530 166380 246797 250980 315060 493594 740391 987188 1233985 1480782 2467970 2961564 3701955 4935940 7403910 14807820