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30671634173 = 39251781423
BaseRepresentation
bin11100100100001010…
…111111111011111101
32221011120002110020212
4130210022333323331
51000303414243143
622031303322205
72134033405655
oct344412777375
987146073225
1030671634173
111200a3797a4
125b3ba50365
132b7a58227b
1416ad71b365
15be7a96918
hex7242bfefd

30671634173 has 4 divisors (see below), whose sum is σ = 30672454848. Its totient is φ = 30670813500.

The previous prime is 30671634113. The next prime is 30671634193. The reversal of 30671634173 is 37143617603.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37143617603 = 311198181213.

It is a cyclic number.

It is not a de Polignac number, because 30671634173 - 26 = 30671634109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30671634173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30671634113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351461 + ... + 429962.

It is an arithmetic number, because the mean of its divisors is an integer number (7668113712).

Almost surely, 230671634173 is an apocalyptic number.

It is an amenable number.

30671634173 is a deficient number, since it is larger than the sum of its proper divisors (820675).

30671634173 is an equidigital number, since it uses as much as digits as its factorization.

30671634173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820674.

The product of its (nonzero) digits is 190512, while the sum is 41.

The spelling of 30671634173 in words is "thirty billion, six hundred seventy-one million, six hundred thirty-four thousand, one hundred seventy-three".

Divisors: 1 39251 781423 30671634173