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180325906 = 2853105701
BaseRepresentation
bin10101011111110…
…00111000010010
3110120022111122021
422233320320102
5332130412111
625521002054
74316513335
oct1257707022
9416274567
10180325906
1192875582
125048332a
132b489327
1419d4061c
1510c6ed71
hexabf8e12

180325906 has 8 divisors (see below), whose sum is σ = 270808524. Its totient is φ = 90056400.

The previous prime is 180325897. The next prime is 180325907. The reversal of 180325906 is 609523081.

It can be written as a sum of positive squares in 2 ways, for example, as 146627881 + 33698025 = 12109^2 + 5805^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (180325907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51145 + ... + 54556.

Almost surely, 2180325906 is an apocalyptic number.

180325906 is a deficient number, since it is larger than the sum of its proper divisors (90482618).

180325906 is a wasteful number, since it uses less digits than its factorization.

180325906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106556.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 180325906 is about 13428.5481717124. The cubic root of 180325906 is about 564.9621777485.

Adding to 180325906 its reverse (609523081), we get a palindrome (789848987).

The spelling of 180325906 in words is "one hundred eighty million, three hundred twenty-five thousand, nine hundred six".

Divisors: 1 2 853 1706 105701 211402 90162953 180325906