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67041321 = 322347107
BaseRepresentation
bin1111111110111…
…1100000101001
311200011001101220
43333233200221
5114130310241
610352532253
71442561514
oct377574051
9150131356
1067041321
1134930156
121a551089
1310b73c29
148c91d7b
155d44166
hex3fef829

67041321 has 4 divisors (see below), whose sum is σ = 89388432. Its totient is φ = 44694212.

The previous prime is 67041307. The next prime is 67041371. The reversal of 67041321 is 12314076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67041321 - 27 = 67041193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67041291 and 67041300.

It is not an unprimeable number, because it can be changed into a prime (67041371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11173551 + ... + 11173556.

It is an arithmetic number, because the mean of its divisors is an integer number (22347108).

Almost surely, 267041321 is an apocalyptic number.

It is an amenable number.

67041321 is a deficient number, since it is larger than the sum of its proper divisors (22347111).

67041321 is a wasteful number, since it uses less digits than its factorization.

67041321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22347110.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 67041321 is about 8187.8764646274. The cubic root of 67041321 is about 406.2382890194.

Adding to 67041321 its reverse (12314076), we get a palindrome (79355397).

The spelling of 67041321 in words is "sixty-seven million, forty-one thousand, three hundred twenty-one".

Divisors: 1 3 22347107 67041321