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34780007 = 44217867
BaseRepresentation
bin1000010010101…
…1001101100111
32102110000012102
42010223031213
532400430012
63241242315
7601424303
oct204531547
972400172
1034780007
11186a5809
12b79339b
1372898b2
144894d03
1530c02c2
hex212b367

34780007 has 4 divisors (see below), whose sum is σ = 34792296. Its totient is φ = 34767720.

The previous prime is 34780001. The next prime is 34780021. The reversal of 34780007 is 70008743.

34780007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 34780007 - 28 = 34779751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34780001) 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, 488 + ... + 8354.

It is an arithmetic number, because the mean of its divisors is an integer number (8698074).

Almost surely, 234780007 is an apocalyptic number.

34780007 is a deficient number, since it is larger than the sum of its proper divisors (12289).

34780007 is an equidigital number, since it uses as much as digits as its factorization.

34780007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12288.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 34780007 is about 5897.4576725908. The cubic root of 34780007 is about 326.4198456021.

The spelling of 34780007 in words is "thirty-four million, seven hundred eighty thousand, seven".

Divisors: 1 4421 7867 34780007