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9280830 = 2351353449
BaseRepresentation
bin100011011001…
…110100111110
3122110111220110
4203121310332
54333441310
6530530450
7141612546
oct43316476
918414813
109280830
115269909
123136a26
131bcc420
141338326
15c34d20
hex8d9d3e

9280830 has 64 divisors (see below), whose sum is σ = 24494400. Its totient is φ = 2236416.

The previous prime is 9280829. The next prime is 9280837. The reversal of 9280830 is 380829.

It is a super-2 number, since 2×92808302 = 172267610977800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9280837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20446 + ... + 20894.

It is an arithmetic number, because the mean of its divisors is an integer number (382725).

Almost surely, 29280830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9280830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12247200).

9280830 is an abundant number, since it is smaller than the sum of its proper divisors (15213570).

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

9280830 is a wasteful number, since it uses less digits than its factorization.

9280830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 9280830 is about 3046.4454697237. The cubic root of 9280830 is about 210.1497797674.

The spelling of 9280830 in words is "nine million, two hundred eighty thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 53 65 78 106 130 159 195 265 318 390 449 530 689 795 898 1347 1378 1590 2067 2245 2694 3445 4134 4490 5837 6735 6890 10335 11674 13470 17511 20670 23797 29185 35022 47594 58370 71391 87555 118985 142782 175110 237970 309361 356955 618722 713910 928083 1546805 1856166 3093610 4640415 9280830