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30557184553 = 74365312079
BaseRepresentation
bin11100011101010110…
…011010001000101001
32220212120201210220001
4130131112122020221
51000040114401203
622012054303001
72131143532420
oct343526321051
986776653801
1030557184553
1111a60809035
125b09657a61
132b5c94c7bc
14169c4482b7
15bdc9da91d
hex71d59a229

30557184553 has 4 divisors (see below), whose sum is σ = 34922496640. Its totient is φ = 26191872468.

The previous prime is 30557184547. The next prime is 30557184563. The reversal of 30557184553 is 35548175503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30557184553 - 217 = 30557053481 is a prime.

It is a super-2 number, since 2×305571845532 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30557184563) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2182656033 + ... + 2182656046.

It is an arithmetic number, because the mean of its divisors is an integer number (8730624160).

Almost surely, 230557184553 is an apocalyptic number.

It is an amenable number.

30557184553 is a deficient number, since it is larger than the sum of its proper divisors (4365312087).

30557184553 is an equidigital number, since it uses as much as digits as its factorization.

30557184553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365312086.

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 30557184553 in words is "thirty billion, five hundred fifty-seven million, one hundred eighty-four thousand, five hundred fifty-three".

Divisors: 1 7 4365312079 30557184553