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34392385 = 510216737
BaseRepresentation
bin1000001100110…
…0100101000001
32101201022111001
42003030211001
532301024020
63225052001
7565221226
oct203144501
971638431
1034392385
1118460565
12b627001
137182331
1447d394d
15304550a
hex20cc941

34392385 has 8 divisors (see below), whose sum is σ = 41317416. Its totient is φ = 27482880.

The previous prime is 34392331. The next prime is 34392403. The reversal of 34392385 is 58329343.

It can be written as a sum of positive squares in 4 ways, for example, as 4460544 + 29931841 = 2112^2 + 5471^2 .

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

It is not a de Polignac number, because 34392385 - 27 = 34392257 is a prime.

It is a super-2 number, since 2×343923852 = 2365672291976450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1737 + ... + 8473.

It is an arithmetic number, because the mean of its divisors is an integer number (5164677).

Almost surely, 234392385 is an apocalyptic number.

It is an amenable number.

34392385 is a deficient number, since it is larger than the sum of its proper divisors (6925031).

34392385 is a wasteful number, since it uses less digits than its factorization.

34392385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7763.

The product of its digits is 77760, while the sum is 37.

The square root of 34392385 is about 5864.5021101539. The cubic root of 34392385 is about 325.2026664925.

The spelling of 34392385 in words is "thirty-four million, three hundred ninety-two thousand, three hundred eighty-five".

Divisors: 1 5 1021 5105 6737 33685 6878477 34392385