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30534105 = 357241543
BaseRepresentation
bin111010001111…
…0100111011001
32010110021220210
41310132213121
530304042410
63010241333
7520351500
oct164364731
963407823
1030534105
11162657a8
12a286249
136431124
1440ab837
152a32220
hex1d1e9d9

30534105 has 24 divisors (see below), whose sum is σ = 56832192. Its totient is φ = 13958112.

The previous prime is 30534103. The next prime is 30534107. The reversal of 30534105 is 50143503.

It is an interprime number because it is at equal distance from previous prime (30534103) and next prime (30534107).

It is not a de Polignac number, because 30534105 - 21 = 30534103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (30534103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20037 + ... + 21506.

It is an arithmetic number, because the mean of its divisors is an integer number (2368008).

Almost surely, 230534105 is an apocalyptic number.

30534105 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30534105 is a deficient number, since it is larger than the sum of its proper divisors (26298087).

30534105 is a wasteful number, since it uses less digits than its factorization.

30534105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41565 (or 41558 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 30534105 is about 5525.7673675246. The cubic root of 30534105 is about 312.5564015531.

Subtracting from 30534105 its product of nonzero digits (900), we obtain a triangular number (30533205 = T7814).

Adding to 30534105 its reverse (50143503), we get a palindrome (80677608).

The spelling of 30534105 in words is "thirty million, five hundred thirty-four thousand, one hundred five".

Divisors: 1 3 5 7 15 21 35 49 105 147 245 735 41543 124629 207715 290801 623145 872403 1454005 2035607 4362015 6106821 10178035 30534105