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30553079 is a prime number
BaseRepresentation
bin111010010001…
…1001111110111
32010111020221112
41310203033313
530310144304
63010505235
7520461014
oct164431767
963436845
1030553079
1116278a87
12a29521b
13643995b
1440b470b
152a37b6e
hex1d233f7

30553079 has 2 divisors, whose sum is σ = 30553080. Its totient is φ = 30553078.

The previous prime is 30553051. The next prime is 30553099. The reversal of 30553079 is 97035503.

It is a strong prime.

It is an emirp because it is prime and its reverse (97035503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30553079 - 216 = 30487543 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30553049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15276539 + 15276540.

It is an arithmetic number, because the mean of its divisors is an integer number (15276540).

Almost surely, 230553079 is an apocalyptic number.

30553079 is a deficient number, since it is larger than the sum of its proper divisors (1).

30553079 is an equidigital number, since it uses as much as digits as its factorization.

30553079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14175, while the sum is 32.

The square root of 30553079 is about 5527.4839665077. The cubic root of 30553079 is about 312.6211293625.

The spelling of 30553079 in words is "thirty million, five hundred fifty-three thousand, seventy-nine".