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9998320 = 245124979
BaseRepresentation
bin100110001000…
…111111110000
3200210222010011
4212020333300
510024421240
6554144304
7150661423
oct46107760
920728104
109998320
115709982
123422094
1320c0b87
1414839ba
15d276ea
hex988ff0

9998320 has 20 divisors (see below), whose sum is σ = 23246280. Its totient is φ = 3999296.

The previous prime is 9998309. The next prime is 9998321. The reversal of 9998320 is 238999.

It is a happy number.

9998320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998321) 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, 62410 + ... + 62569.

It is an arithmetic number, because the mean of its divisors is an integer number (1162314).

Almost surely, 29998320 is an apocalyptic number.

It is an amenable number.

9998320 is an abundant number, since it is smaller than the sum of its proper divisors (13247960).

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

9998320 is a wasteful number, since it uses less digits than its factorization.

9998320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124992 (or 124986 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 9998320 is about 3162.0120176875. The cubic root of 9998320 is about 215.4314034932.

The spelling of 9998320 in words is "nine million, nine hundred ninety-eight thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 124979 249958 499916 624895 999832 1249790 1999664 2499580 4999160 9998320