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3180081 = 34792213
BaseRepresentation
bin1100001000011000110001
312222120020210
430020120301
51303230311
6152054333
736013242
oct14103061
95876223
103180081
111882273
1210943a9
13874608
145cacc9
1542c3a6
hex308631

3180081 has 8 divisors (see below), whose sum is σ = 4250880. Its totient is φ = 2114672.

The previous prime is 3180031. The next prime is 3180101. The reversal of 3180081 is 1800813.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3180081 - 26 = 3180017 is a prime.

It is a super-2 number, since 2×31800812 = 20225830333122, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3180031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331 + ... + 2543.

It is an arithmetic number, because the mean of its divisors is an integer number (531360).

Almost surely, 23180081 is an apocalyptic number.

It is an amenable number.

3180081 is a deficient number, since it is larger than the sum of its proper divisors (1070799).

3180081 is a wasteful number, since it uses less digits than its factorization.

3180081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 3180081 is about 1783.2781611403. The cubic root of 3180081 is about 147.0548640597.

Adding to 3180081 its reverse (1800813), we get a palindrome (4980894).

The spelling of 3180081 in words is "three million, one hundred eighty thousand, eighty-one".

Divisors: 1 3 479 1437 2213 6639 1060027 3180081