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30630103 = 74375729
BaseRepresentation
bin111010011011…
…0000011010111
32010122011121021
41310312003113
530320130403
63012302011
7521231410
oct164660327
963564537
1030630103
1116320939
12a311907
136465a2a
1440d4807
152a508bd
hex1d360d7

30630103 has 4 divisors (see below), whose sum is σ = 35005840. Its totient is φ = 26254368.

The previous prime is 30630101. The next prime is 30630137. The reversal of 30630103 is 30103603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30103603 = 160118803.

It is not a de Polignac number, because 30630103 - 21 = 30630101 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 (30630101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2187858 + ... + 2187871.

It is an arithmetic number, because the mean of its divisors is an integer number (8751460).

Almost surely, 230630103 is an apocalyptic number.

30630103 is a deficient number, since it is larger than the sum of its proper divisors (4375737).

30630103 is an equidigital number, since it uses as much as digits as its factorization.

30630103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375736.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 30630103 is about 5534.4469461727. The cubic root of 30630103 is about 312.8836138034.

Adding to 30630103 its reverse (30103603), we get a palindrome (60733706).

The spelling of 30630103 in words is "thirty million, six hundred thirty thousand, one hundred three".

Divisors: 1 7 4375729 30630103