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67714217 = 296773449
BaseRepresentation
bin1000000100100…
…11110010101001
311201102020102222
410002103302221
5114313323332
610415203425
71451363354
oct402236251
9151366388
1067714217
113524a76a
121a816575
131104b2ac
148dc929b
155e28712
hex4093ca9

67714217 has 8 divisors (see below), whose sum is σ = 70173000. Its totient is φ = 65263744.

The previous prime is 67714193. The next prime is 67714237. The reversal of 67714217 is 71241776.

It can be written as a sum of positive squares in 4 ways, for example, as 10394176 + 57320041 = 3224^2 + 7571^2 .

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 67714217 - 212 = 67710121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67714237) 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 7 ways as a sum of consecutive naturals, for example, 17909 + ... + 21357.

It is an arithmetic number, because the mean of its divisors is an integer number (8771625).

Almost surely, 267714217 is an apocalyptic number.

It is an amenable number.

67714217 is a deficient number, since it is larger than the sum of its proper divisors (2458783).

67714217 is a wasteful number, since it uses less digits than its factorization.

67714217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155.

The product of its digits is 16464, while the sum is 35.

The square root of 67714217 is about 8228.8648670397. The cubic root of 67714217 is about 407.5929094235.

The spelling of 67714217 in words is "sixty-seven million, seven hundred fourteen thousand, two hundred seventeen".

Divisors: 1 29 677 3449 19633 100021 2334973 67714217