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75029423 = 7191035477
BaseRepresentation
bin1000111100011…
…01101110101111
312020011220000112
410132031232233
5123201420143
611240050235
71600511450
oct436155657
9166156015
1075029423
1139396797
122116397b
131270cb11
149d71127
1568c0e18
hex478dbaf

75029423 has 16 divisors (see below), whose sum is σ = 91153920. Its totient is φ = 60323616.

The previous prime is 75029417. The next prime is 75029431. The reversal of 75029423 is 32492057.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 75029423 - 24 = 75029407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75029423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75029413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10961 + ... + 16437.

It is an arithmetic number, because the mean of its divisors is an integer number (5697120).

Almost surely, 275029423 is an apocalyptic number.

75029423 is a deficient number, since it is larger than the sum of its proper divisors (16124497).

75029423 is a wasteful number, since it uses less digits than its factorization.

75029423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 75029423 is about 8661.9526089676. The cubic root of 75029423 is about 421.7714728171.

The spelling of 75029423 in words is "seventy-five million, twenty-nine thousand, four hundred twenty-three".

Divisors: 1 7 19 103 133 721 1957 5477 13699 38339 104063 564131 728441 3948917 10718489 75029423