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34939390 = 253493939
BaseRepresentation
bin1000010101001…
…0000111111110
32102202002211111
42011102013332
532421030030
63244512234
7602660053
oct205220776
972662744
1034939390
11187a4532
12b84b67a
1373142c5
1448d702a
15310262a
hex21521fe

34939390 has 8 divisors (see below), whose sum is σ = 62890920. Its totient is φ = 13975752.

The previous prime is 34939379. The next prime is 34939393. The reversal of 34939390 is 9393943.

34939390 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (34939393) 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 3 ways as a sum of consecutive naturals, for example, 1746960 + ... + 1746979.

It is an arithmetic number, because the mean of its divisors is an integer number (7861365).

Almost surely, 234939390 is an apocalyptic number.

34939390 is a deficient number, since it is larger than the sum of its proper divisors (27951530).

34939390 is a wasteful number, since it uses less digits than its factorization.

34939390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493946.

The product of its (nonzero) digits is 78732, while the sum is 40.

The square root of 34939390 is about 5910.9550835715. The cubic root of 34939390 is about 326.9177035121.

The spelling of 34939390 in words is "thirty-four million, nine hundred thirty-nine thousand, three hundred ninety".

Divisors: 1 2 5 10 3493939 6987878 17469695 34939390