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84025765 = 597173249
BaseRepresentation
bin1010000001000…
…10000110100101
312212002221200101
411000202012211
5133002311030
612200544101
72040131035
oct500420645
9185087611
1084025765
114348088a
1224182031
131453c8b5
14b2338c5
15759b7ca
hex50221a5

84025765 has 8 divisors (see below), whose sum is σ = 101871000. Its totient is φ = 66527232.

The previous prime is 84025763. The next prime is 84025787. The reversal of 84025765 is 56752048.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27730756 + 56295009 = 5266^2 + 7503^2 .

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 84025765 - 21 = 84025763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84025763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86140 + ... + 87109.

It is an arithmetic number, because the mean of its divisors is an integer number (12733875).

Almost surely, 284025765 is an apocalyptic number.

It is an amenable number.

84025765 is a deficient number, since it is larger than the sum of its proper divisors (17845235).

84025765 is a wasteful number, since it uses less digits than its factorization.

84025765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173351.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 84025765 is about 9166.5568781304. The cubic root of 84025765 is about 437.9966865189.

The spelling of 84025765 in words is "eighty-four million, twenty-five thousand, seven hundred sixty-five".

Divisors: 1 5 97 485 173249 866245 16805153 84025765