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30052756 = 2219395431
BaseRepresentation
bin111001010100…
…1000110010100
32002112211122001
41302221012110
530143142011
62552045044
7513305236
oct162510624
962484561
1030052756
1115a67098
12a093784
1362c2cc6
143dc4256
1529897c1
hex1ca9194

30052756 has 12 divisors (see below), whose sum is σ = 55360480. Its totient is φ = 14235480.

The previous prime is 30052751. The next prime is 30052807. The reversal of 30052756 is 65725003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30052751) 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, 197640 + ... + 197791.

Almost surely, 230052756 is an apocalyptic number.

It is an amenable number.

30052756 is a deficient number, since it is larger than the sum of its proper divisors (25307724).

30052756 is a wasteful number, since it uses less digits than its factorization.

30052756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395454 (or 395452 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 30052756 is about 5482.0394015366. The cubic root of 30052756 is about 310.9052829982.

Adding to 30052756 its reverse (65725003), we get a palindrome (95777759).

The spelling of 30052756 in words is "thirty million, fifty-two thousand, seven hundred fifty-six".

Divisors: 1 2 4 19 38 76 395431 790862 1581724 7513189 15026378 30052756