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67304317 = 312171107
BaseRepresentation
bin1000000001011…
…11101101111101
311200122102011111
410000233231331
5114212214232
610402322021
71445035333
oct400575575
9150572144
1067304317
1134a9a803
121a659311
1310c36852
148d1db53
155d97047
hex402fb7d

67304317 has 4 divisors (see below), whose sum is σ = 69475456. Its totient is φ = 65133180.

The previous prime is 67304297. The next prime is 67304351. The reversal of 67304317 is 71340376.

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 67304317 - 27 = 67304189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 2171107 = 67304317 / (6 + 7 + 3 + 0 + 4 + 3 + 1 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67304357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085523 + ... + 1085584.

It is an arithmetic number, because the mean of its divisors is an integer number (17368864).

Almost surely, 267304317 is an apocalyptic number.

It is an amenable number.

67304317 is a deficient number, since it is larger than the sum of its proper divisors (2171139).

67304317 is a wasteful number, since it uses less digits than its factorization.

67304317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171138.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 67304317 is about 8203.9208309198. The cubic root of 67304317 is about 406.7688058264.

The spelling of 67304317 in words is "sixty-seven million, three hundred four thousand, three hundred seventeen".

Divisors: 1 31 2171107 67304317