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30184959149 = 67247448867
BaseRepresentation
bin11100000111001010…
…011110110010101101
32212220122022210121222
4130013022132302231
5443304322143044
621511120233125
72116003630232
oct340712366255
985818283558
1030184959149
111188a693634
125a24a6b7a5
132b007b4297
141664c33789
15bb9eb18ee
hex70729ecad

30184959149 has 4 divisors (see below), whose sum is σ = 30185475264. Its totient is φ = 30184443036.

The previous prime is 30184959137. The next prime is 30184959151. The reversal of 30184959149 is 94195948103.

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 30184959149 - 220 = 30183910573 is a prime.

It is a super-2 number, since 2×301849591492 (a number of 22 digits) contains 22 as substring.

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 30184959149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30184959109) 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, 157187 + ... + 291680.

It is an arithmetic number, because the mean of its divisors is an integer number (7546368816).

Almost surely, 230184959149 is an apocalyptic number.

It is an amenable number.

30184959149 is a deficient number, since it is larger than the sum of its proper divisors (516115).

30184959149 is an equidigital number, since it uses as much as digits as its factorization.

30184959149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516114.

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 30184959149 in words is "thirty billion, one hundred eighty-four million, nine hundred fifty-nine thousand, one hundred forty-nine".

Divisors: 1 67247 448867 30184959149