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34680047 = 50216907
BaseRepresentation
bin1000010001001…
…0110011101111
32102020221002012
42010102303233
532334230142
63235151435
7600530003
oct204226357
972227065
1034680047
11186376a6
12b74557b
13725324c
14486a703
1530a0882
hex2112cef

34680047 has 4 divisors (see below), whose sum is σ = 34691976. Its totient is φ = 34668120.

The previous prime is 34680029. The next prime is 34680049. The reversal of 34680047 is 74008643.

It is a happy number.

34680047 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, and also an emirpimes, since its reverse is a distinct semiprime: 74008643 = 425917377.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34680047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34679995 and 34680022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34680049) 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, 1568 + ... + 8474.

It is an arithmetic number, because the mean of its divisors is an integer number (8672994).

Almost surely, 234680047 is an apocalyptic number.

34680047 is a deficient number, since it is larger than the sum of its proper divisors (11929).

34680047 is an equidigital number, since it uses as much as digits as its factorization.

34680047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11928.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 34680047 is about 5888.9767362420. The cubic root of 34680047 is about 326.1068282509.

The spelling of 34680047 in words is "thirty-four million, six hundred eighty thousand, forty-seven".

Divisors: 1 5021 6907 34680047