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33980005 = 561910979
BaseRepresentation
bin1000000110011…
…1111001100101
32100221100210201
42001213321211
532144330010
63212150501
7561553033
oct201477145
970840721
1033980005
11181a9754
12b468431
137069717
144727553
152eb323a
hex2067e65

33980005 has 8 divisors (see below), whose sum is σ = 40845600. Its totient is φ = 27137616.

The previous prime is 33979997. The next prime is 33980053. The reversal of 33980005 is 50008933.

It is a happy number.

33980005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 33980005 - 23 = 33979997 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2395 + ... + 8584.

It is an arithmetic number, because the mean of its divisors is an integer number (5105700).

Almost surely, 233980005 is an apocalyptic number.

It is an amenable number.

33980005 is a deficient number, since it is larger than the sum of its proper divisors (6865595).

33980005 is a wasteful number, since it uses less digits than its factorization.

33980005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11603.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 33980005 is about 5829.2370855885. The cubic root of 33980005 is about 323.8976617551.

Adding to 33980005 its reverse (50008933), we get a palindrome (83988938).

The spelling of 33980005 in words is "thirty-three million, nine hundred eighty thousand, five".

Divisors: 1 5 619 3095 10979 54895 6796001 33980005