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34712309 = 434311873
BaseRepresentation
bin1000010001101…
…0101011110101
32102022120100002
42010122223311
532341243214
63240001045
7601023032
oct204325365
972276302
1034712309
1118659965
12b760185
137264b38
144878389
1530aa1de
hex211aaf5

34712309 has 8 divisors (see below), whose sum is σ = 35620992. Its totient is φ = 33808320.

The previous prime is 34712299. The next prime is 34712329. The reversal of 34712309 is 90321743.

34712309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2k-34712309 is a prime.

It is a super-2 number, since 2×347123092 = 2409888792222962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34712329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17597 + ... + 19469.

It is an arithmetic number, because the mean of its divisors is an integer number (4452624).

Almost surely, 234712309 is an apocalyptic number.

It is an amenable number.

34712309 is a deficient number, since it is larger than the sum of its proper divisors (908683).

34712309 is a wasteful number, since it uses less digits than its factorization.

34712309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 34712309 is about 5891.7152850422. The cubic root of 34712309 is about 326.2079199800.

The spelling of 34712309 in words is "thirty-four million, seven hundred twelve thousand, three hundred nine".

Divisors: 1 43 431 1873 18533 80539 807263 34712309