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30757668082 = 215378834041
BaseRepresentation
bin11100101001010011…
…001100010011110010
32221101112222102120221
4130221103030103302
51000442430334312
622044015323254
72136126602461
oct345123142362
987345872527
1030757668082
11120539a12a9
125b6482052a
132b92345bcb
1416bad149d8
15c003dd207
hex7294cc4f2

30757668082 has 4 divisors (see below), whose sum is σ = 46136502126. Its totient is φ = 15378834040.

The previous prime is 30757668079. The next prime is 30757668119. The reversal of 30757668082 is 28086675703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28086675703 = 37937404871.

It can be written as a sum of positive squares in only one way, i.e., 30754286161 + 3381921 = 175369^2 + 1839^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7689417019 + ... + 7689417022.

Almost surely, 230757668082 is an apocalyptic number.

30757668082 is a deficient number, since it is larger than the sum of its proper divisors (15378834044).

30757668082 is a wasteful number, since it uses less digits than its factorization.

30757668082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15378834043.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 30757668082 in words is "thirty billion, seven hundred fifty-seven million, six hundred sixty-eight thousand, eighty-two".

Divisors: 1 2 15378834041 30757668082