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28416053 = 73974013
BaseRepresentation
bin110110001100…
…1100000110101
31222110200111102
41230121200311
524233303203
62453015445
7463350431
oct154314065
958420442
1028416053
1115049446
129624585
135b6c043
143ab99c1
152764888
hex1b19835

28416053 has 8 divisors (see below), whose sum is σ = 29109528. Its totient is φ = 27730944.

The previous prime is 28416049. The next prime is 28416121. The reversal of 28416053 is 35061482.

It can be written as a sum of positive squares in 4 ways, for example, as 8720209 + 19695844 = 2953^2 + 4438^2 .

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 28416053 - 22 = 28416049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28416013) 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, 5075 + ... + 9087.

It is an arithmetic number, because the mean of its divisors is an integer number (3638691).

Almost surely, 228416053 is an apocalyptic number.

It is an amenable number.

28416053 is a deficient number, since it is larger than the sum of its proper divisors (693475).

28416053 is an equidigital number, since it uses as much as digits as its factorization.

28416053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 28416053 is about 5330.6709709004. The cubic root of 28416053 is about 305.1555347538.

The spelling of 28416053 in words is "twenty-eight million, four hundred sixteen thousand, fifty-three".

Divisors: 1 73 97 4013 7081 292949 389261 28416053