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42769029 = 323619841
BaseRepresentation
bin1010001100100…
…1101010000101
32222110220002010
42203021222011
541422102104
64124404433
71026350022
oct243115205
988426063
1042769029
1122162006
12123a6719
138b26024
145974549
153b4c489
hex28c9a85

42769029 has 8 divisors (see below), whose sum is σ = 59504832. Its totient is φ = 27272960.

The previous prime is 42769009. The next prime is 42769037. The reversal of 42769029 is 92096724.

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 42769029 - 28 = 42768773 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42769009) 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 7 ways as a sum of consecutive naturals, for example, 309852 + ... + 309989.

It is an arithmetic number, because the mean of its divisors is an integer number (7438104).

Almost surely, 242769029 is an apocalyptic number.

It is an amenable number.

42769029 is a deficient number, since it is larger than the sum of its proper divisors (16735803).

42769029 is a wasteful number, since it uses less digits than its factorization.

42769029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619867.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 42769029 is about 6539.8034374131. The cubic root of 42769029 is about 349.7114056408.

The spelling of 42769029 in words is "forty-two million, seven hundred sixty-nine thousand, twenty-nine".

Divisors: 1 3 23 69 619841 1859523 14256343 42769029