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34779505 = 513750773
BaseRepresentation
bin1000010010101…
…1000101110001
32102102222111211
42010223011301
532400421010
63241240121
7601422655
oct204530561
972388454
1034779505
11186a53a2
12b793041
1372895b7
144894a65
1530c008a
hex212b171

34779505 has 8 divisors (see below), whose sum is σ = 42040872. Its totient is φ = 27619968.

The previous prime is 34779491. The next prime is 34779517. The reversal of 34779505 is 50597743.

It can be written as a sum of positive squares in 4 ways, for example, as 8071281 + 26708224 = 2841^2 + 5168^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 34779505 - 225 = 1225073 is a prime.

It is a super-2 number, since 2×347795052 = 2419227936090050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 24702 + ... + 26071.

It is an arithmetic number, because the mean of its divisors is an integer number (5255109).

Almost surely, 234779505 is an apocalyptic number.

It is an amenable number.

34779505 is a deficient number, since it is larger than the sum of its proper divisors (7261367).

34779505 is a wasteful number, since it uses less digits than its factorization.

34779505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50915.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 34779505 is about 5897.4151117248. The cubic root of 34779505 is about 326.4182751256.

The spelling of 34779505 in words is "thirty-four million, seven hundred seventy-nine thousand, five hundred five".

Divisors: 1 5 137 685 50773 253865 6955901 34779505