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67480453 = 82182193
BaseRepresentation
bin1000000010110…
…10101110000101
311200222100210001
410001122232011
5114233333303
610410201301
71446401005
oct401325605
9150870701
1067480453
1135100077
121a723231
1310c98a81
148d68005
155dce31d
hex405ab85

67480453 has 4 divisors (see below), whose sum is σ = 67563468. Its totient is φ = 67397440.

The previous prime is 67480451. The next prime is 67480471. The reversal of 67480453 is 35408476.

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 6749604 + 60730849 = 2598^2 + 7793^2 .

It is a cyclic number.

It is not a de Polignac number, because 67480453 - 21 = 67480451 is a prime.

It is a super-2 number, since 2×674804532 = 9107223074170418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67480451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40276 + ... + 41917.

It is an arithmetic number, because the mean of its divisors is an integer number (16890867).

Almost surely, 267480453 is an apocalyptic number.

It is an amenable number.

67480453 is a deficient number, since it is larger than the sum of its proper divisors (83015).

67480453 is an equidigital number, since it uses as much as digits as its factorization.

67480453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83014.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 67480453 is about 8214.6486839061. The cubic root of 67480453 is about 407.1233359384.

The spelling of 67480453 in words is "sixty-seven million, four hundred eighty thousand, four hundred fifty-three".

Divisors: 1 821 82193 67480453