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67842425 = 5271392789
BaseRepresentation
bin1000000101100…
…11000101111001
311201122202022102
410002303011321
5114331424200
610422033145
71452436220
oct402630571
9151582272
1067842425
1135328022
121a8787b5
1311094761
14901dcb7
155e516d5
hex40b3179

67842425 has 24 divisors (see below), whose sum is σ = 96868800. Its totient is φ = 46169280.

The previous prime is 67842419. The next prime is 67842487. The reversal of 67842425 is 52424876.

It is not a de Polignac number, because 67842425 - 24 = 67842409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22931 + ... + 25719.

It is an arithmetic number, because the mean of its divisors is an integer number (4036200).

Almost surely, 267842425 is an apocalyptic number.

It is an amenable number.

67842425 is a deficient number, since it is larger than the sum of its proper divisors (29026375).

67842425 is a wasteful number, since it uses less digits than its factorization.

67842425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945 (or 2940 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 67842425 is about 8236.6513219876. The cubic root of 67842425 is about 407.8499885043.

The spelling of 67842425 in words is "sixty-seven million, eight hundred forty-two thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 139 175 695 973 2789 3475 4865 13945 19523 24325 69725 97615 387671 488075 1938355 2713697 9691775 13568485 67842425