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30111117 = 3232811553
BaseRepresentation
bin111001011011…
…1010110001101
32002122210200120
41302313112031
530202023432
62553215153
7513640341
oct162672615
962583616
1030111117
1115aa6a23
12a1014b9
13631373a
143ddb621
15299bc2c
hex1cb758d

30111117 has 16 divisors (see below), whose sum is σ = 42069888. Its totient is φ = 19120640.

The previous prime is 30111091. The next prime is 30111121. The reversal of 30111117 is 71111103.

It is a cyclic number.

It is not a de Polignac number, because 30111117 - 223 = 21722509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30111096 and 30111105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18613 + ... + 20165.

It is an arithmetic number, because the mean of its divisors is an integer number (2629368).

Almost surely, 230111117 is an apocalyptic number.

It is an amenable number.

30111117 is a deficient number, since it is larger than the sum of its proper divisors (11958771).

30111117 is a wasteful number, since it uses less digits than its factorization.

30111117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860.

The product of its (nonzero) digits is 21, while the sum is 15.

The square root of 30111117 is about 5487.3597476382. The cubic root of 30111117 is about 311.1064072087.

The spelling of 30111117 in words is "thirty million, one hundred eleven thousand, one hundred seventeen".

Divisors: 1 3 23 69 281 843 1553 4659 6463 19389 35719 107157 436393 1309179 10037039 30111117