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30830032 = 244146997
BaseRepresentation
bin111010110011…
…0110111010000
32011000022212001
41311212313100
530343030112
63020443344
7523023322
oct165466720
964008761
1030830032
1116448072
12a3a9554
136505a2c
144147612
152a8ec57
hex1d66dd0

30830032 has 20 divisors (see below), whose sum is σ = 61191396. Its totient is φ = 15038720.

The previous prime is 30830021. The next prime is 30830039. The reversal of 30830032 is 23003803.

It can be written as a sum of positive squares in 2 ways, for example, as 6780816 + 24049216 = 2604^2 + 4904^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30829991 and 30830009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30830039) 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, 22843 + ... + 24154.

Almost surely, 230830032 is an apocalyptic number.

It is an amenable number.

30830032 is a deficient number, since it is larger than the sum of its proper divisors (30361364).

30830032 is a wasteful number, since it uses less digits than its factorization.

30830032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47046 (or 47040 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30830032 is about 5552.4798063568. The cubic root of 30830032 is about 313.5628899757.

Adding to 30830032 its reverse (23003803), we get a palindrome (53833835).

The spelling of 30830032 in words is "thirty million, eight hundred thirty thousand, thirty-two".

Divisors: 1 2 4 8 16 41 82 164 328 656 46997 93994 187988 375976 751952 1926877 3853754 7707508 15415016 30830032