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308880 = 243351113
BaseRepresentation
bin1001011011010010000
3120200201000
41023122100
534341010
610342000
72424345
oct1133220
9520630
10308880
111a1080
1212a900
13aa790
14807cc
15617c0
hex4b690

308880 has 160 divisors (see below), whose sum is σ = 1249920. Its totient is φ = 69120.

The previous prime is 308857. The next prime is 308887. The reversal of 308880 is 88803.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308880.

It is not an unprimeable number, because it can be changed into a prime (308887) 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, 23754 + ... + 23766.

It is an arithmetic number, because the mean of its divisors is an integer number (7812).

2308880 is an apocalyptic number.

308880 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 308880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624960).

308880 is an abundant number, since it is smaller than the sum of its proper divisors (941040).

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

308880 is a wasteful number, since it uses less digits than its factorization.

308880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 308880 is about 555.7697364917. The cubic root of 308880 is about 67.5973902801.

The spelling of 308880 in words is "three hundred eight thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 13 15 16 18 20 22 24 26 27 30 33 36 39 40 44 45 48 52 54 55 60 65 66 72 78 80 88 90 99 104 108 110 117 120 130 132 135 143 144 156 165 176 180 195 198 208 216 220 234 240 260 264 270 286 297 312 330 351 360 390 396 429 432 440 468 495 520 528 540 572 585 594 624 660 702 715 720 780 792 858 880 936 990 1040 1080 1144 1170 1188 1287 1320 1404 1430 1485 1560 1584 1716 1755 1872 1980 2145 2160 2288 2340 2376 2574 2640 2808 2860 2970 3120 3432 3510 3861 3960 4290 4680 4752 5148 5616 5720 5940 6435 6864 7020 7722 7920 8580 9360 10296 11440 11880 12870 14040 15444 17160 19305 20592 23760 25740 28080 30888 34320 38610 51480 61776 77220 102960 154440 308880