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9997230 = 2351917539
BaseRepresentation
bin100110001000…
…101110101110
3200210220121210
4212020232232
510024402410
6554135250
7150655305
oct46105656
920726553
109997230
115709081
123421526
1320c0529
14148343c
15d27220
hex988bae

9997230 has 32 divisors (see below), whose sum is σ = 25257600. Its totient is φ = 2525472.

The previous prime is 9997219. The next prime is 9997237. The reversal of 9997230 is 327999.

9997230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9997237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8200 + ... + 9339.

It is an arithmetic number, because the mean of its divisors is an integer number (789300).

Almost surely, 29997230 is an apocalyptic number.

9997230 is an abundant number, since it is smaller than the sum of its proper divisors (15260370).

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

9997230 is a wasteful number, since it uses less digits than its factorization.

9997230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17568.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 9997230 is about 3161.8396543784. The cubic root of 9997230 is about 215.4235745525.

The spelling of 9997230 in words is "nine million, nine hundred ninety-seven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 17539 35078 52617 87695 105234 175390 263085 333241 526170 666482 999723 1666205 1999446 3332410 4998615 9997230