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304214149 = 19127139907
BaseRepresentation
bin10010001000011…
…111000010000101
3210012102200100201
4102020133002011
51110334323044
650104210501
710352530501
oct2210370205
9705380321
10304214149
111467a2658
1285a69a31
134b044c95
142c58d301
151ba927d4
hex1221f085

304214149 has 16 divisors (see below), whose sum is σ = 325427200. Its totient is φ = 283563504.

The previous prime is 304214107. The next prime is 304214153. The reversal of 304214149 is 941412403.

It is a cyclic number.

It is not a de Polignac number, because 304214149 - 27 = 304214021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304214159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334954 + ... + 335860.

It is an arithmetic number, because the mean of its divisors is an integer number (20339200).

Almost surely, 2304214149 is an apocalyptic number.

It is an amenable number.

304214149 is a deficient number, since it is larger than the sum of its proper divisors (21213051).

304214149 is a wasteful number, since it uses less digits than its factorization.

304214149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 304214149 is about 17441.7358367795. The cubic root of 304214149 is about 672.5529310705.

The spelling of 304214149 in words is "three hundred four million, two hundred fourteen thousand, one hundred forty-nine".

Divisors: 1 19 127 139 907 2413 2641 17233 17653 115189 126073 335407 2188591 2395387 16011271 304214149