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30770052 = 2232564171
BaseRepresentation
bin111010101100…
…0001110000100
32010220021120120
41311120032010
530334120202
63015301540
7522353415
oct165301604
963807516
1030770052
1116406aa5
12a37a8b0
1364b4641
14412d80c
152a7c0bc
hex1d58384

30770052 has 12 divisors (see below), whose sum is σ = 71796816. Its totient is φ = 10256680.

The previous prime is 30770041. The next prime is 30770057. The reversal of 30770052 is 25007703.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×307700522 = 1893592200165408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30770057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282074 + ... + 1282097.

It is an arithmetic number, because the mean of its divisors is an integer number (5983068).

Almost surely, 230770052 is an apocalyptic number.

It is an amenable number.

30770052 is an abundant number, since it is smaller than the sum of its proper divisors (41026764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30770052 is a wasteful number, since it uses less digits than its factorization.

30770052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564178 (or 2564176 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 24.

The square root of 30770052 is about 5547.0759864996. The cubic root of 30770052 is about 313.3594118428.

Adding to 30770052 its reverse (25007703), we get a palindrome (55777755).

The spelling of 30770052 in words is "thirty million, seven hundred seventy thousand, fifty-two".

Divisors: 1 2 3 4 6 12 2564171 5128342 7692513 10256684 15385026 30770052