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67550041 = 135196157
BaseRepresentation
bin1000000011010…
…11101101011001
311201002220020101
410001223231121
5114243100131
610411455401
71450110616
oct401535531
9151086211
1067550041
1135148389
121a757561
1310cc1650
148d8550d
155de4c61
hex406bb59

67550041 has 4 divisors (see below), whose sum is σ = 72746212. Its totient is φ = 62353872.

The previous prime is 67550029. The next prime is 67550047. The reversal of 67550041 is 14005576.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32444416 + 35105625 = 5696^2 + 5925^2 .

It is a cyclic number.

It is not a de Polignac number, because 67550041 - 25 = 67550009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67549991 and 67550009.

It is not an unprimeable number, because it can be changed into a prime (67550047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2598066 + ... + 2598091.

It is an arithmetic number, because the mean of its divisors is an integer number (18186553).

Almost surely, 267550041 is an apocalyptic number.

It is an amenable number.

67550041 is a deficient number, since it is larger than the sum of its proper divisors (5196171).

67550041 is a wasteful number, since it uses less digits than its factorization.

67550041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5196170.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 67550041 is about 8218.8831966393. The cubic root of 67550041 is about 407.2632340592.

The spelling of 67550041 in words is "sixty-seven million, five hundred fifty thousand, forty-one".

Divisors: 1 13 5196157 67550041