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304271149 = 71321913537
BaseRepresentation
bin10010001000101…
…100111100101101
3210012112120112211
4102020230330231
51110343134044
650105330421
710353155620
oct2210547455
9705476484
10304271149
11146831466
1285a96a11
134b064c00
142c5a5db7
151baa4634
hex1222cf2d

304271149 has 24 divisors (see below), whose sum is σ = 396392640. Its totient is φ = 228054528.

The previous prime is 304271147. The next prime is 304271159. The reversal of 304271149 is 941172403.

It is not a de Polignac number, because 304271149 - 21 = 304271147 is a prime.

It is a super-2 number, since 2×3042711492 = 185161864227560402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 304271149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304271147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15709 + ... + 29245.

It is an arithmetic number, because the mean of its divisors is an integer number (16516360).

Almost surely, 2304271149 is an apocalyptic number.

It is an amenable number.

304271149 is a deficient number, since it is larger than the sum of its proper divisors (92121491).

304271149 is a wasteful number, since it uses less digits than its factorization.

304271149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13589 (or 13576 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 304271149 is about 17443.3697719219. The cubic root of 304271149 is about 672.5949334157.

The spelling of 304271149 in words is "three hundred four million, two hundred seventy-one thousand, one hundred forty-nine".

Divisors: 1 7 13 19 91 133 169 247 1183 1729 3211 13537 22477 94759 175981 257203 1231867 1800421 2287753 3343639 16014271 23405473 43467307 304271149