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34780068 = 2232966113
BaseRepresentation
bin1000010010101…
…1001110100100
32102110000021200
42010223032210
532400430233
63241242500
7601424421
oct204531644
972400250
1034780068
11186a5864
12b793430
13728992b
144894d48
1530c0313
hex212b3a4

34780068 has 18 divisors (see below), whose sum is σ = 87916374. Its totient is φ = 11593344.

The previous prime is 34780049. The next prime is 34780069. The reversal of 34780068 is 86008743.

It can be written as a sum of positive squares in only one way, i.e., 25887744 + 8892324 = 5088^2 + 2982^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 966113 = 34780068 / (3 + 4 + 7 + 8 + 0 + 0 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (34780069) 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 5 ways as a sum of consecutive naturals, for example, 483021 + ... + 483092.

It is an arithmetic number, because the mean of its divisors is an integer number (4884243).

Almost surely, 234780068 is an apocalyptic number.

It is an amenable number.

34780068 is an abundant number, since it is smaller than the sum of its proper divisors (53136306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34780068 is a wasteful number, since it uses less digits than its factorization.

34780068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966123 (or 966118 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 34780068 is about 5897.4628443086. The cubic root of 34780068 is about 326.4200364358.

The spelling of 34780068 in words is "thirty-four million, seven hundred eighty thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 966113 1932226 2898339 3864452 5796678 8695017 11593356 17390034 34780068