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67196513 = 89857881
BaseRepresentation
bin1000000000101…
…01011001100001
311200102221021202
410000111121201
5114200242023
610400130545
71444106126
oct400253141
9150387252
1067196513
1134a2680a
121a606a55
1310bc9767
148cd274d
155d75128
hex4015661

67196513 has 8 divisors (see below), whose sum is σ = 68108040. Its totient is φ = 66288640.

The previous prime is 67196497. The next prime is 67196533. The reversal of 67196513 is 31569176.

It can be written as a sum of positive squares in 4 ways, for example, as 6091024 + 61105489 = 2468^2 + 7817^2 .

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 67196513 - 24 = 67196497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67196533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75833 + ... + 76713.

It is an arithmetic number, because the mean of its divisors is an integer number (8513505).

Almost surely, 267196513 is an apocalyptic number.

It is an amenable number.

67196513 is a deficient number, since it is larger than the sum of its proper divisors (911527).

67196513 is an equidigital number, since it uses as much as digits as its factorization.

67196513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827.

The product of its digits is 34020, while the sum is 38.

The square root of 67196513 is about 8197.3479247864. The cubic root of 67196513 is about 406.5515105128.

The spelling of 67196513 in words is "sixty-seven million, one hundred ninety-six thousand, five hundred thirteen".

Divisors: 1 89 857 881 76273 78409 755017 67196513