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30432103 = 132340931
BaseRepresentation
bin111010000010…
…1101101100111
32010021002222221
41310011231213
530242311403
63004133211
7516445222
oct164055547
963232887
1030432103
11161a60a9
12a237207
1363c6880
1440825b9
152a11dbd
hex1d05b67

30432103 has 4 divisors (see below), whose sum is σ = 32773048. Its totient is φ = 28091160.

The previous prime is 30432097. The next prime is 30432113. The reversal of 30432103 is 30123403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30123403 = 154919447.

It is a cyclic number.

It is not a de Polignac number, because 30432103 - 217 = 30301031 is a prime.

It is a super-2 number, since 2×304321032 = 1852225786005218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30432113) 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, 1170453 + ... + 1170478.

It is an arithmetic number, because the mean of its divisors is an integer number (8193262).

Almost surely, 230432103 is an apocalyptic number.

30432103 is a deficient number, since it is larger than the sum of its proper divisors (2340945).

30432103 is a wasteful number, since it uses less digits than its factorization.

30432103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340944.

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

The square root of 30432103 is about 5516.5299781656. The cubic root of 30432103 is about 312.2079720947.

Adding to 30432103 its reverse (30123403), we get a palindrome (60555506).

The spelling of 30432103 in words is "thirty million, four hundred thirty-two thousand, one hundred three".

Divisors: 1 13 2340931 30432103