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30273688 = 23191511319
BaseRepresentation
bin111001101111…
…1000010011000
32002222001200201
41303133002120
530222224223
63000511544
7515215324
oct163370230
962861621
1030273688
11160a8085
12a17b5b4
13636c733
144040984
1529ceead
hex1cdf098

30273688 has 32 divisors (see below), whose sum is σ = 60192000. Its totient is φ = 14234400.

The previous prime is 30273679. The next prime is 30273713. The reversal of 30273688 is 88637203.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22293 + ... + 23611.

It is an arithmetic number, because the mean of its divisors is an integer number (1881000).

Almost surely, 230273688 is an apocalyptic number.

30273688 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30273688 is a deficient number, since it is larger than the sum of its proper divisors (29918312).

30273688 is a wasteful number, since it uses less digits than its factorization.

30273688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1491 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 30273688 is about 5502.1530331317. The cubic root of 30273688 is about 311.6652941434.

The spelling of 30273688 in words is "thirty million, two hundred seventy-three thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 19 38 76 151 152 302 604 1208 1319 2638 2869 5276 5738 10552 11476 22952 25061 50122 100244 199169 200488 398338 796676 1593352 3784211 7568422 15136844 30273688