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BaseRepresentation
bin111001101000…
…0000000100100
32002211221020212
41303100000210
530213242012
62555314552
7514541006
oct163200044
962757225
1030212132
1116065905
12a14ba58
13634a702
144026376
1529bbb22
hex1cd0024

30212132 has 12 divisors (see below), whose sum is σ = 53339916. Its totient is φ = 14972160.

The previous prime is 30212131. The next prime is 30212153. The reversal of 30212132 is 23121203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3936256 + 26275876 = 1984^2 + 5126^2 .

It is not an unprimeable number, because it can be changed into a prime (30212131) 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, 32969 + ... + 33872.

It is an arithmetic number, because the mean of its divisors is an integer number (4444993).

Almost surely, 230212132 is an apocalyptic number.

It is an amenable number.

30212132 is a deficient number, since it is larger than the sum of its proper divisors (23127784).

30212132 is a wasteful number, since it uses less digits than its factorization.

30212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66958 (or 66956 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30212132 is about 5496.5563764961. The cubic root of 30212132 is about 311.4539127118.

Adding to 30212132 its reverse (23121203), we get a palindrome (53333335).

The spelling of 30212132 in words is "thirty million, two hundred twelve thousand, one hundred thirty-two".