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30330230 = 2572967223
BaseRepresentation
bin111001110110…
…0110101110110
32010001221020212
41303230311312
530231031410
63002025422
7515542220
oct163546566
963057225
1030330230
1116136607
12a1a8272
13638c3a8
144057410
1529e1b05
hex1cecd76

30330230 has 64 divisors (see below), whose sum is σ = 65802240. Its totient is φ = 9846144.

The previous prime is 30330211. The next prime is 30330239. The reversal of 30330230 is 3203303.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30330239) 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, 135899 + ... + 136121.

It is an arithmetic number, because the mean of its divisors is an integer number (1028160).

Almost surely, 230330230 is an apocalyptic number.

30330230 is an abundant number, since it is smaller than the sum of its proper divisors (35472010).

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

30330230 is a wasteful number, since it uses less digits than its factorization.

30330230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333.

The product of its (nonzero) digits is 162, while the sum is 14.

The square root of 30330230 is about 5507.2888066634. The cubic root of 30330230 is about 311.8592053211.

Adding to 30330230 its reverse (3203303), we get a palindrome (33533533).

The spelling of 30330230 in words is "thirty million, three hundred thirty thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 29 35 58 67 70 134 145 203 223 290 335 406 446 469 670 938 1015 1115 1561 1943 2030 2230 2345 3122 3886 4690 6467 7805 9715 12934 13601 14941 15610 19430 27202 29882 32335 45269 64670 68005 74705 90538 104587 136010 149410 209174 226345 433289 452690 522935 866578 1045870 2166445 3033023 4332890 6066046 15165115 30330230