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3027281 = 29139751
BaseRepresentation
bin1011100011000101010001
312200210122112
423203011101
51233333111
6144515105
734505615
oct13430521
95623575
103027281
111788494
12101ba95
1381cbba
1458b345
153ebe8b
hex2e3151

3027281 has 8 divisors (see below), whose sum is σ = 3158400. Its totient is φ = 2898000.

The previous prime is 3027263. The next prime is 3027287. The reversal of 3027281 is 1827203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3027281 is a prime.

It is a super-2 number, since 2×30272812 = 18328860505922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3027287) 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, 3656 + ... + 4406.

It is an arithmetic number, because the mean of its divisors is an integer number (394800).

Almost surely, 23027281 is an apocalyptic number.

It is an amenable number.

3027281 is a deficient number, since it is larger than the sum of its proper divisors (131119).

3027281 is a wasteful number, since it uses less digits than its factorization.

3027281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3027281 is about 1739.9083309186. The cubic root of 3027281 is about 144.6608163967.

The spelling of 3027281 in words is "three million, twenty-seven thousand, two hundred eighty-one".

Divisors: 1 29 139 751 4031 21779 104389 3027281