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180425216 = 2917191091
BaseRepresentation
bin10101100000100…
…01001000000000
3110120111112212102
422300101020000
5332142101331
625523045532
74320406016
oct1260211000
9416445772
10180425216
1192933154
12505108a8
132b4c25aa
1419d688b6
1510c8e4cb
hexac11200

180425216 has 80 divisors (see below), whose sum is σ = 402161760. Its totient is φ = 80363520.

The previous prime is 180425191. The next prime is 180425257. The reversal of 180425216 is 612524081.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164831 + ... + 165921.

It is an arithmetic number, because the mean of its divisors is an integer number (5027022).

Almost surely, 2180425216 is an apocalyptic number.

180425216 is a gapful number since it is divisible by the number (16) 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 180425216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201080880).

180425216 is an abundant number, since it is smaller than the sum of its proper divisors (221736544).

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

180425216 is a wasteful number, since it uses less digits than its factorization.

180425216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 180425216 is about 13432.2453819159. The cubic root of 180425216 is about 565.0658716631.

Adding to 180425216 its reverse (612524081), we get a palindrome (792949297).

The spelling of 180425216 in words is "one hundred eighty million, four hundred twenty-five thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 17 19 32 34 38 64 68 76 128 136 152 256 272 304 323 512 544 608 646 1088 1091 1216 1292 2176 2182 2432 2584 4352 4364 4864 5168 8704 8728 9728 10336 17456 18547 20672 20729 34912 37094 41344 41458 69824 74188 82688 82916 139648 148376 165376 165832 279296 296752 331664 352393 558592 593504 663328 704786 1187008 1326656 1409572 2374016 2653312 2819144 4748032 5306624 5638288 9496064 10613248 11276576 22553152 45106304 90212608 180425216