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309134 = 2771311
BaseRepresentation
bin1001011011110001110
3120201001102
41023132032
534343014
610343102
72425160
oct1133616
9521042
10309134
111a1291
1212aa92
13aa927
1480930
15618de
hex4b78e

309134 has 16 divisors (see below), whose sum is σ = 539136. Its totient is φ = 130200.

The previous prime is 309131. The next prime is 309137. The reversal of 309134 is 431903.

It is an interprime number because it is at equal distance from previous prime (309131) and next prime (309137).

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 309134.

It is not an unprimeable number, because it can be changed into a prime (309131) 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 7 ways as a sum of consecutive naturals, for example, 839 + ... + 1149.

It is an arithmetic number, because the mean of its divisors is an integer number (33696).

2309134 is an apocalyptic number.

309134 is a deficient number, since it is larger than the sum of its proper divisors (230002).

309134 is a wasteful number, since it uses less digits than its factorization.

309134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 309134 is about 555.9982014359. The cubic root of 309134 is about 67.6159142299.

It can be divided in two parts, 3091 and 34, that added together give a 5-th power (3125 = 55).

The spelling of 309134 in words is "three hundred nine thousand, one hundred thirty-four".

Divisors: 1 2 7 14 71 142 311 497 622 994 2177 4354 22081 44162 154567 309134