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9990798 = 2317412389
BaseRepresentation
bin100110000111…
…001010001110
3200210120210120
4212013022032
510024201143
6554045410
7150630456
oct46071216
920716716
109990798
115704264
123419866
1320ba61c
141480d66
15d25383
hex98728e

9990798 has 32 divisors (see below), whose sum is σ = 21682080. Its totient is φ = 3056640.

The previous prime is 9990797. The next prime is 9990803. The reversal of 9990798 is 8970999.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 9990798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9990797) 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 15 ways as a sum of consecutive naturals, for example, 2988 + ... + 5376.

It is an arithmetic number, because the mean of its divisors is an integer number (677565).

Almost surely, 29990798 is an apocalyptic number.

9990798 is an abundant number, since it is smaller than the sum of its proper divisors (11691282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9990798 is a wasteful number, since it uses less digits than its factorization.

9990798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452.

The product of its (nonzero) digits is 367416, while the sum is 51.

The square root of 9990798 is about 3160.8223613484. The cubic root of 9990798 is about 215.3773650294.

The spelling of 9990798 in words is "nine million, nine hundred ninety thousand, seven hundred ninety-eight".