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30105323 = 151199373
BaseRepresentation
bin111001011010…
…1111011101011
32002122111201222
41302311323223
530201332243
62553132255
7513614423
oct162657353
962574658
1030105323
1115aa2636
12a0ba08b
136310c01
143dd9483
15299a168
hex1cb5eeb

30105323 has 4 divisors (see below), whose sum is σ = 30304848. Its totient is φ = 29905800.

The previous prime is 30105307. The next prime is 30105331. The reversal of 30105323 is 32350103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32350103 = 191702637.

It is a cyclic number.

It is not a de Polignac number, because 30105323 - 24 = 30105307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30105353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99536 + ... + 99837.

It is an arithmetic number, because the mean of its divisors is an integer number (7576212).

Almost surely, 230105323 is an apocalyptic number.

30105323 is a deficient number, since it is larger than the sum of its proper divisors (199525).

30105323 is a wasteful number, since it uses less digits than its factorization.

30105323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199524.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 30105323 is about 5486.8317816387. The cubic root of 30105323 is about 311.0864514988.

Adding to 30105323 its reverse (32350103), we get a palindrome (62455426).

The spelling of 30105323 in words is "thirty million, one hundred five thousand, three hundred twenty-three".

Divisors: 1 151 199373 30105323