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30222330 = 2354124571
BaseRepresentation
bin111001101001…
…0011111111010
32002212110020120
41303102133322
530214103310
62555434110
7514612515
oct163223772
962773216
1030222330
1116072536
12a155936
136352248
144029d7c
1529beb70
hex1cd27fa

30222330 has 32 divisors (see below), whose sum is σ = 74305728. Its totient is φ = 7862400.

The previous prime is 30222307. The next prime is 30222373. The reversal of 30222330 is 3322203.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11056 + ... + 13515.

It is an arithmetic number, because the mean of its divisors is an integer number (2322054).

Almost surely, 230222330 is an apocalyptic number.

30222330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30222330 is an abundant number, since it is smaller than the sum of its proper divisors (44083398).

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

30222330 is a wasteful number, since it uses less digits than its factorization.

30222330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24622.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 30222330 is about 5497.4839699630. The cubic root of 30222330 is about 311.4889521643.

Adding to 30222330 its reverse (3322203), we get a palindrome (33544533).

It can be divided in two parts, 302223 and 30, that added together give a triangular number (302253 = T777).

The spelling of 30222330 in words is "thirty million, two hundred twenty-two thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 41 82 123 205 246 410 615 1230 24571 49142 73713 122855 147426 245710 368565 737130 1007411 2014822 3022233 5037055 6044466 10074110 15111165 30222330