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182806020 = 223256116649
BaseRepresentation
bin10101110010101…
…10011000000100
3110201222111201100
422321112120010
5333244243040
630050100100
74346553105
oct1271263004
9421874640
10182806020
1194209961
125127a630
132bb47157
141a3c83ac
15110aeb30
hexae56604

182806020 has 72 divisors (see below), whose sum is σ = 563635800. Its totient is φ = 47946240.

The previous prime is 182806009. The next prime is 182806021. The reversal of 182806020 is 20608281.

It can be written as a sum of positive squares in 4 ways, for example, as 4743684 + 178062336 = 2178^2 + 13344^2 .

It is not an unprimeable number, because it can be changed into a prime (182806021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2656 + ... + 19304.

It is an arithmetic number, because the mean of its divisors is an integer number (7828275).

Almost surely, 2182806020 is an apocalyptic number.

182806020 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 182806020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281817900).

182806020 is an abundant number, since it is smaller than the sum of its proper divisors (380829780).

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

182806020 is a wasteful number, since it uses less digits than its factorization.

182806020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16725 (or 16720 counting only the distinct ones).

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

The square root of 182806020 is about 13520.5776503817. The cubic root of 182806020 is about 567.5404642950.

The spelling of 182806020 in words is "one hundred eighty-two million, eight hundred six thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 61 90 122 180 183 244 305 366 549 610 732 915 1098 1220 1830 2196 2745 3660 5490 10980 16649 33298 49947 66596 83245 99894 149841 166490 199788 249735 299682 332980 499470 599364 749205 998940 1015589 1498410 2031178 2996820 3046767 4062356 5077945 6093534 9140301 10155890 12187068 15233835 18280602 20311780 30467670 36561204 45701505 60935340 91403010 182806020