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3180628 = 221172287
BaseRepresentation
bin1100001000100001010100
312222121000001
430020201110
51303240003
6152101044
736014653
oct14104124
95877001
103180628
111882720
121094784
13874939
145cb19a
1542c61d
hex308854

3180628 has 12 divisors (see below), whose sum is σ = 6072192. Its totient is φ = 1445720.

The previous prime is 3180613. The next prime is 3180641. The reversal of 3180628 is 8260813.

It is a junction number, because it is equal to n+sod(n) for n = 3180596 and 3180605.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 36100 + ... + 36187.

It is an arithmetic number, because the mean of its divisors is an integer number (506016).

Almost surely, 23180628 is an apocalyptic number.

It is an amenable number.

3180628 is a deficient number, since it is larger than the sum of its proper divisors (2891564).

3180628 is a wasteful number, since it uses less digits than its factorization.

3180628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72302 (or 72300 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 3180628 is about 1783.4315237766. The cubic root of 3180628 is about 147.0632951236.

The spelling of 3180628 in words is "three million, one hundred eighty thousand, six hundred twenty-eight".

Divisors: 1 2 4 11 22 44 72287 144574 289148 795157 1590314 3180628