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328824180 = 223253797509
BaseRepresentation
bin10011100110010…
…111010101110100
3211220201222222100
4103212113111310
51133134333210
652343502100
711101650036
oct2346272564
9756658870
10328824180
11159681523
1292157930
1353180829
1431957c56
151dd045c0
hex13997574

328824180 has 144 divisors (see below), whose sum is σ = 1036985040. Its totient is φ = 84271104.

The previous prime is 328824179. The next prime is 328824187. The reversal of 328824180 is 81428823.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 28772496 + 300051684 = 5364^2 + 17322^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328824187) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 645766 + ... + 646274.

It is an arithmetic number, because the mean of its divisors is an integer number (7201285).

Almost surely, 2328824180 is an apocalyptic number.

328824180 is a gapful number since it is divisible by the number (30) 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 328824180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518492520).

328824180 is an abundant number, since it is smaller than the sum of its proper divisors (708160860).

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

328824180 is a wasteful number, since it uses less digits than its factorization.

328824180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 328824180 is about 18133.5098643368. The cubic root of 328824180 is about 690.2205973930.

The spelling of 328824180 in words is "three hundred twenty-eight million, eight hundred twenty-four thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 37 45 60 74 90 97 111 148 180 185 194 222 291 333 370 388 444 485 509 555 582 666 740 873 970 1018 1110 1164 1332 1455 1527 1665 1746 1940 2036 2220 2545 2910 3054 3330 3492 3589 4365 4581 5090 5820 6108 6660 7178 7635 8730 9162 10180 10767 14356 15270 17460 17945 18324 18833 21534 22905 30540 32301 35890 37666 43068 45810 49373 53835 56499 64602 71780 75332 91620 94165 98746 107670 112998 129204 148119 161505 169497 188330 197492 215340 225996 246865 282495 296238 323010 338994 376660 444357 493730 564990 592476 646020 677988 740595 847485 888714 987460 1129980 1481190 1694970 1777428 1826801 2221785 2962380 3389940 3653602 4443570 5480403 7307204 8887140 9134005 10960806 16441209 18268010 21921612 27402015 32882418 36536020 54804030 65764836 82206045 109608060 164412090 328824180