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30194111 = 151199961
BaseRepresentation
bin111001100101…
…1100110111111
32002211000112102
41303023212333
530212202421
62555055315
7514434323
oct163134677
962730472
1030194111
1116053312
12a14153b
13634244c
14401d983
1529b660b
hex1ccb9bf

30194111 has 4 divisors (see below), whose sum is σ = 30394224. Its totient is φ = 29994000.

The previous prime is 30194077. The next prime is 30194113. The reversal of 30194111 is 11149103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11149103 = 71592729.

It is a cyclic number.

It is not a de Polignac number, because 30194111 - 214 = 30177727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30194113) 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, 99830 + ... + 100131.

It is an arithmetic number, because the mean of its divisors is an integer number (7598556).

Almost surely, 230194111 is an apocalyptic number.

30194111 is a deficient number, since it is larger than the sum of its proper divisors (200113).

30194111 is a wasteful number, since it uses less digits than its factorization.

30194111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200112.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 30194111 is about 5494.9168328556. The cubic root of 30194111 is about 311.3919748200.

The spelling of 30194111 in words is "thirty million, one hundred ninety-four thousand, one hundred eleven".

Divisors: 1 151 199961 30194111