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30543371173 = 74363338739
BaseRepresentation
bin11100011100100001…
…101101101110100101
32220211121202000111101
4130130201231232211
51000023100334143
622010442240101
72130615241240
oct343441555645
986747660441
1030543371173
1111a53a33917
125b04ab6031
132b59b242c3
14169a690257
15bdb6acb4d
hex71c86dba5

30543371173 has 4 divisors (see below), whose sum is σ = 34906709920. Its totient is φ = 26180032428.

The previous prime is 30543371171. The next prime is 30543371233. The reversal of 30543371173 is 37117334503.

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 30543371173 - 21 = 30543371171 is a prime.

It is a super-2 number, since 2×305433711732 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30543371171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2181669363 + ... + 2181669376.

It is an arithmetic number, because the mean of its divisors is an integer number (8726677480).

Almost surely, 230543371173 is an apocalyptic number.

It is an amenable number.

30543371173 is a deficient number, since it is larger than the sum of its proper divisors (4363338747).

30543371173 is an equidigital number, since it uses as much as digits as its factorization.

30543371173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363338746.

The product of its (nonzero) digits is 79380, while the sum is 37.

The spelling of 30543371173 in words is "thirty billion, five hundred forty-three million, three hundred seventy-one thousand, one hundred seventy-three".

Divisors: 1 7 4363338739 30543371173