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8013001 = 17471353
BaseRepresentation
bin11110100100010011001001
3120002002202211
4132210103021
54022404001
6443425121
7125052343
oct36442311
916062684
108013001
114583317
1228251a1
131877329
1410c8293
15a84351
hex7a44c9

8013001 has 4 divisors (see below), whose sum is σ = 8484372. Its totient is φ = 7541632.

The previous prime is 8012987. The next prime is 8013013. The reversal of 8013001 is 1003108.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5760000 + 2253001 = 2400^2 + 1501^2 .

It is a cyclic number.

It is not a de Polignac number, because 8013001 - 211 = 8010953 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8013101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235660 + ... + 235693.

It is an arithmetic number, because the mean of its divisors is an integer number (2121093).

Almost surely, 28013001 is an apocalyptic number.

It is an amenable number.

8013001 is a deficient number, since it is larger than the sum of its proper divisors (471371).

8013001 is a wasteful number, since it uses less digits than its factorization.

8013001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471370.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 8013001 is about 2830.7244655741. The cubic root of 8013001 is about 200.1082830300.

Adding to 8013001 its reverse (1003108), we get a palindrome (9016109).

The spelling of 8013001 in words is "eight million, thirteen thousand, one".

Divisors: 1 17 471353 8013001