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9800813 = 115316811
BaseRepresentation
bin100101011000…
…110001101101
3200102221012002
4211120301231
510002111223
6550022045
7146206541
oct45306155
920387162
109800813
115594550
123347925
132051cc9
141431a21
15cd8e28
hex958c6d

9800813 has 8 divisors (see below), whose sum is σ = 10894176. Its totient is φ = 8741200.

The previous prime is 9800803. The next prime is 9800821. The reversal of 9800813 is 3180089.

It is a happy number.

9800813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9800813 - 210 = 9799789 is a prime.

It is a Duffinian number.

9800813 is a modest number, since divided by 813 gives 98 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9800803) 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, 7823 + ... + 8988.

It is an arithmetic number, because the mean of its divisors is an integer number (1361772).

Almost surely, 29800813 is an apocalyptic number.

It is an amenable number.

9800813 is a deficient number, since it is larger than the sum of its proper divisors (1093363).

9800813 is a wasteful number, since it uses less digits than its factorization.

9800813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16875.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 9800813 is about 3130.6250174686. The cubic root of 9800813 is about 214.0034136352.

The spelling of 9800813 in words is "nine million, eight hundred thousand, eight hundred thirteen".

Divisors: 1 11 53 583 16811 184921 890983 9800813