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180325540 = 2259016277
BaseRepresentation
bin10101011111110…
…00110010100100
3110120022111010201
422233320302210
5332130404130
625521000244
74316512303
oct1257706244
9416274121
10180325540
119287527a
1250483084
132b489105
1419d4043a
1510c6ebca
hexabf8ca4

180325540 has 12 divisors (see below), whose sum is σ = 378683676. Its totient is φ = 72130208.

The previous prime is 180325517. The next prime is 180325553. The reversal of 180325540 is 45523081.

It can be written as a sum of positive squares in 2 ways, for example, as 41886784 + 138438756 = 6472^2 + 11766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 180325499 and 180325508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4508119 + ... + 4508158.

It is an arithmetic number, because the mean of its divisors is an integer number (31556973).

Almost surely, 2180325540 is an apocalyptic number.

180325540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180325540 is an abundant number, since it is smaller than the sum of its proper divisors (198358136).

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

180325540 is a wasteful number, since it uses less digits than its factorization.

180325540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9016286 (or 9016284 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 180325540 is about 13428.5345440223. The cubic root of 180325540 is about 564.9617955215.

The spelling of 180325540 in words is "one hundred eighty million, three hundred twenty-five thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 9016277 18032554 36065108 45081385 90162770 180325540