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42080229 = 34519509
BaseRepresentation
bin1010000010000…
…1011111100101
32221011220020000
42200201133211
541233031404
64101531513
71020450612
oct240413745
987156200
1042080229
1121831554
1212113b99
138944659
145835509
153a63339
hex28217e5

42080229 has 10 divisors (see below), whose sum is σ = 62860710. Its totient is φ = 28053432.

The previous prime is 42080197. The next prime is 42080257. The reversal of 42080229 is 92208024.

It can be written as a sum of positive squares in only one way, i.e., 35820225 + 6260004 = 5985^2 + 2502^2 .

It is not a de Polignac number, because 42080229 - 25 = 42080197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42080279) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 259674 + ... + 259835.

It is an arithmetic number, because the mean of its divisors is an integer number (6286071).

Almost surely, 242080229 is an apocalyptic number.

It is an amenable number.

42080229 is a deficient number, since it is larger than the sum of its proper divisors (20780481).

42080229 is an equidigital number, since it uses as much as digits as its factorization.

42080229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519521 (or 519512 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 42080229 is about 6486.9275469979. The cubic root of 42080229 is about 347.8238555661.

The spelling of 42080229 in words is "forty-two million, eighty thousand, two hundred twenty-nine".

Divisors: 1 3 9 27 81 519509 1558527 4675581 14026743 42080229