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30530882 = 215265441
BaseRepresentation
bin111010001110…
…1110101000010
32010110010111102
41310131311002
530303442012
63010214402
7520336214
oct164356502
963403442
1030530882
1116263338
12a284402
13642c815
1440aa5b4
152a312c2
hex1d1dd42

30530882 has 4 divisors (see below), whose sum is σ = 45796326. Its totient is φ = 15265440.

The previous prime is 30530873. The next prime is 30530909. The reversal of 30530882 is 28803503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28803503 = 58749069.

It can be written as a sum of positive squares in only one way, i.e., 20802721 + 9728161 = 4561^2 + 3119^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7632719 + ... + 7632722.

Almost surely, 230530882 is an apocalyptic number.

30530882 is a deficient number, since it is larger than the sum of its proper divisors (15265444).

30530882 is a wasteful number, since it uses less digits than its factorization.

30530882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15265443.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 30530882 is about 5525.4757261253. The cubic root of 30530882 is about 312.5454039628.

The spelling of 30530882 in words is "thirty million, five hundred thirty thousand, eight hundred eighty-two".

Divisors: 1 2 15265441 30530882