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30342103 = 112758373
BaseRepresentation
bin111001110111…
…1101111010111
32010002112112121
41303233233113
530231421403
63002200411
7515621641
oct163575727
963075477
1030342103
1116144520
12a1b3107
13639490c
14405b891
1529e53bd
hex1cefbd7

30342103 has 4 divisors (see below), whose sum is σ = 33100488. Its totient is φ = 27583720.

The previous prime is 30342101. The next prime is 30342113. The reversal of 30342103 is 30124303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30124303 = 112738573.

It is a cyclic number.

It is not a de Polignac number, because 30342103 - 21 = 30342101 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 (30342101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1379176 + ... + 1379197.

It is an arithmetic number, because the mean of its divisors is an integer number (8275122).

Almost surely, 230342103 is an apocalyptic number.

30342103 is a deficient number, since it is larger than the sum of its proper divisors (2758385).

30342103 is a wasteful number, since it uses less digits than its factorization.

30342103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758384.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30342103 is about 5508.3666363088. The cubic root of 30342103 is about 311.8998932343.

Adding to 30342103 its reverse (30124303), we get a palindrome (60466406).

The spelling of 30342103 in words is "thirty million, three hundred forty-two thousand, one hundred three".

Divisors: 1 11 2758373 30342103