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34308939 = 3723251283
BaseRepresentation
bin1000001011100…
…0001101001011
32101120002000110
42002320031023
532240341224
63223205403
7564423030
oct202701513
971502013
1034308939
11184038a5
12b5a6863
137153362
1447b1387
15302a929
hex20b834b

34308939 has 32 divisors (see below), whose sum is σ = 54964224. Its totient is φ = 18612000.

The previous prime is 34308917. The next prime is 34308961. The reversal of 34308939 is 93980343.

It is an interprime number because it is at equal distance from previous prime (34308917) and next prime (34308961).

It is not a de Polignac number, because 34308939 - 28 = 34308683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34308897 and 34308906.

It is not an unprimeable number, because it can be changed into a prime (34308979) 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 31 ways as a sum of consecutive naturals, for example, 121092 + ... + 121374.

It is an arithmetic number, because the mean of its divisors is an integer number (1717632).

Almost surely, 234308939 is an apocalyptic number.

34308939 is a deficient number, since it is larger than the sum of its proper divisors (20655285).

34308939 is a wasteful number, since it uses less digits than its factorization.

34308939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 34308939 is about 5857.3832894903. The cubic root of 34308939 is about 324.9394411820.

The spelling of 34308939 in words is "thirty-four million, three hundred eight thousand, nine hundred thirty-nine".

Divisors: 1 3 7 21 23 69 161 251 283 483 753 849 1757 1981 5271 5773 5943 6509 17319 19527 40411 45563 71033 121233 136689 213099 497231 1491693 1633759 4901277 11436313 34308939