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78324848 = 24717311327
BaseRepresentation
bin1001010101100…
…10010001110000
312110101022111022
410222302101300
5130022343343
611434435012
71640515220
oct452622160
9173338438
1078324848
1140237688
1222292a68
13132c4a84
14a58c080
156d22568
hex4ab2470

78324848 has 80 divisors (see below), whose sum is σ = 189702144. Its totient is φ = 30551040.

The previous prime is 78324847. The next prime is 78324863. The reversal of 78324848 is 84842387.

It is a super-2 number, since 2×783248482 = 12269563628446208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78324799 and 78324808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78324847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58361 + ... + 59687.

Almost surely, 278324848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78324848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94851072).

78324848 is an abundant number, since it is smaller than the sum of its proper divisors (111377296).

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

78324848 is a wasteful number, since it uses less digits than its factorization.

78324848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390 (or 1384 counting only the distinct ones).

The product of its digits is 344064, while the sum is 44.

The square root of 78324848 is about 8850.1326543730. The cubic root of 78324848 is about 427.8581939160.

The spelling of 78324848 in words is "seventy-eight million, three hundred twenty-four thousand, eight hundred forty-eight".

Divisors: 1 2 4 7 8 14 16 17 28 31 34 56 62 68 112 119 124 136 217 238 248 272 434 476 496 527 868 952 1054 1327 1736 1904 2108 2654 3472 3689 4216 5308 7378 8432 9289 10616 14756 18578 21232 22559 29512 37156 41137 45118 59024 74312 82274 90236 148624 157913 164548 180472 287959 315826 329096 360944 575918 631652 658192 699329 1151836 1263304 1398658 2303672 2526608 2797316 4607344 4895303 5594632 9790606 11189264 19581212 39162424 78324848