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80832320 = 2654161101
BaseRepresentation
bin1001101000101…
…10011101000000
312122002201002122
410310112131000
5131143113240
612004303412
72001030512
oct464263500
9178081078
1080832320
114169a578
12230a1b68
131399219a
14aa41bb2
15716a4b5
hex4d16740

80832320 has 112 divisors (see below), whose sum is σ = 202393296. Its totient is φ = 30720000.

The previous prime is 80832317. The next prime is 80832337. The reversal of 80832320 is 2323808.

It can be written as a sum of positive squares in 8 ways, for example, as 10137856 + 70694464 = 3184^2 + 8408^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80832320.

It is a congruent number.

It is an unprimeable number.

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, 800270 + ... + 800370.

It is an arithmetic number, because the mean of its divisors is an integer number (1807083).

Almost surely, 280832320 is an apocalyptic number.

80832320 is a gapful number since it is divisible by the number (80) 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 80832320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101196648).

80832320 is an abundant number, since it is smaller than the sum of its proper divisors (121560976).

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

80832320 is a wasteful number, since it uses less digits than its factorization.

80832320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 80832320 is about 8990.6796183603. The cubic root of 80832320 is about 432.3761013673.

It can be divided in two parts, 80 and 832320, that multiplied together give a square (66585600 = 81602).

The spelling of 80832320 in words is "eighty million, eight hundred thirty-two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 41 61 64 80 82 101 122 160 164 202 205 244 305 320 328 404 410 488 505 610 656 808 820 976 1010 1220 1312 1616 1640 1952 2020 2440 2501 2624 3232 3280 3904 4040 4141 4880 5002 6161 6464 6560 8080 8282 9760 10004 12322 12505 13120 16160 16564 19520 20008 20705 24644 25010 30805 32320 33128 40016 41410 49288 50020 61610 66256 80032 82820 98576 100040 123220 132512 160064 165640 197152 200080 246440 252601 265024 331280 394304 400160 492880 505202 662560 800320 985760 1010404 1263005 1325120 1971520 2020808 2526010 4041616 5052020 8083232 10104040 16166464 20208080 40416160 80832320