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30343228 = 22195967101
BaseRepresentation
bin111001111000…
…0000000111100
32010002121002021
41303300000330
530231440403
63002205524
7515625136
oct163600074
963077067
1030343228
1116145353
12a1b38a4
136395296
14405c056
1529e58bd
hex1cf003c

30343228 has 48 divisors (see below), whose sum is σ = 58262400. Its totient is φ = 13780800.

The previous prime is 30343211. The next prime is 30343231. The reversal of 30343228 is 82234303.

It is a super-2 number, since 2×303432282 = 1841422970919968, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300378 + ... + 300478.

It is an arithmetic number, because the mean of its divisors is an integer number (1213800).

Almost surely, 230343228 is an apocalyptic number.

30343228 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30343228 is a deficient number, since it is larger than the sum of its proper divisors (27919172).

30343228 is a wasteful number, since it uses less digits than its factorization.

30343228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 30343228 is about 5508.4687527479. The cubic root of 30343228 is about 311.9037479775.

The spelling of 30343228 in words is "thirty million, three hundred forty-three thousand, two hundred twenty-eight".

Divisors: 1 2 4 19 38 59 67 76 101 118 134 202 236 268 404 1121 1273 1919 2242 2546 3838 3953 4484 5092 5959 6767 7676 7906 11918 13534 15812 23836 27068 75107 113221 128573 150214 226442 257146 300428 399253 452884 514292 798506 1597012 7585807 15171614 30343228