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305886949149 = 3131778338293
BaseRepresentation
bin1000111001110000100…
…10000110111100011101
31002020112210021000210210
410130320102012330131
520002424024333044
6352304510523033
731046110111365
oct4347022067435
91066483230723
10305886949149
111087a9232331
124b348b06479
1322aca664782
1410b3ad239a5
157e544151b9
hex4738486f1d

305886949149 has 8 divisors (see below), whose sum is σ = 410962619232. Its totient is φ = 202367955920.

The previous prime is 305886949129. The next prime is 305886949189. The reversal of 305886949149 is 941949688503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 305886949149 - 28 = 305886948893 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 305886949149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305886949129) 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 7 ways as a sum of consecutive naturals, for example, 389168754 + ... + 389169539.

It is an arithmetic number, because the mean of its divisors is an integer number (51370327404).

Almost surely, 2305886949149 is an apocalyptic number.

It is an amenable number.

305886949149 is a deficient number, since it is larger than the sum of its proper divisors (105075670083).

305886949149 is a wasteful number, since it uses less digits than its factorization.

305886949149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778338427.

The product of its (nonzero) digits is 67184640, while the sum is 66.

The spelling of 305886949149 in words is "three hundred five billion, eight hundred eighty-six million, nine hundred forty-nine thousand, one hundred forty-nine".

Divisors: 1 3 131 393 778338293 2335014879 101962316383 305886949149