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30323230 = 2571014289
BaseRepresentation
bin111001110101…
…1001000011110
32010001120122121
41303223020132
530230320410
63001533154
7515512630
oct163531036
963046577
1030323230
1116131323
12a1a41ba
136389152
144054a50
1529de9da
hex1ceb21e

30323230 has 32 divisors (see below), whose sum is σ = 63011520. Its totient is φ = 10291200.

The previous prime is 30323203. The next prime is 30323233. The reversal of 30323230 is 3232303.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30323233) 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, 4926 + ... + 9214.

It is an arithmetic number, because the mean of its divisors is an integer number (1969110).

Almost surely, 230323230 is an apocalyptic number.

30323230 is an abundant number, since it is smaller than the sum of its proper divisors (32688290).

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

30323230 is a wasteful number, since it uses less digits than its factorization.

30323230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404.

The product of its (nonzero) digits is 324, while the sum is 16.

The square root of 30323230 is about 5506.6532485712. The cubic root of 30323230 is about 311.8352118510.

Adding to 30323230 its reverse (3232303), we get a palindrome (33555533).

The spelling of 30323230 in words is "thirty million, three hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 101 202 505 707 1010 1414 3535 4289 7070 8578 21445 30023 42890 60046 150115 300230 433189 866378 2165945 3032323 4331890 6064646 15161615 30323230