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9802001 = 11891091
BaseRepresentation
bin100101011001…
…000100010001
3200102222211002
4211121010101
510002131001
6550031345
7146213156
oct45310421
920388732
109802001
115595430
123348555
132052701
14143222d
15cd946b
hex959111

9802001 has 4 divisors (see below), whose sum is σ = 10693104. Its totient is φ = 8910900.

The previous prime is 9801997. The next prime is 9802019. The reversal of 9802001 is 1002089.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1002089 = 1191099.

It is a cyclic number.

It is not a de Polignac number, because 9802001 - 22 = 9801997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9802031) 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, 445535 + ... + 445556.

It is an arithmetic number, because the mean of its divisors is an integer number (2673276).

Almost surely, 29802001 is an apocalyptic number.

It is an amenable number.

9802001 is a deficient number, since it is larger than the sum of its proper divisors (891103).

9802001 is a wasteful number, since it uses less digits than its factorization.

9802001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891102.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 9802001 is about 3130.8147501888. The cubic root of 9802001 is about 214.0120600534.

The spelling of 9802001 in words is "nine million, eight hundred two thousand, one".

Divisors: 1 11 891091 9802001