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34978065 = 352331871
BaseRepresentation
bin1000010101101…
…1100100010001
32102211001212220
42011123210101
532423244230
63245411253
7603210603
oct205334421
972731786
1034978065
11188205a1
12b869b29
137328aa5
144907173
15310dd10
hex215b911

34978065 has 8 divisors (see below), whose sum is σ = 55964928. Its totient is φ = 18654960.

The previous prime is 34978057. The next prime is 34978067. The reversal of 34978065 is 56087943.

It is a happy number.

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

It is not a de Polignac number, because 34978065 - 23 = 34978057 is a prime.

It is a super-2 number, since 2×349780652 = 2446930062288450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (34978067) 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, 1165921 + ... + 1165950.

It is an arithmetic number, because the mean of its divisors is an integer number (6995616).

Almost surely, 234978065 is an apocalyptic number.

It is an amenable number.

34978065 is a deficient number, since it is larger than the sum of its proper divisors (20986863).

34978065 is a wasteful number, since it uses less digits than its factorization.

34978065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331879.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 34978065 is about 5914.2256466929. The cubic root of 34978065 is about 327.0382826057.

The spelling of 34978065 in words is "thirty-four million, nine hundred seventy-eight thousand, sixty-five".

Divisors: 1 3 5 15 2331871 6995613 11659355 34978065