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67330471 = 1319214347
BaseRepresentation
bin1000000001101…
…10000110100111
311200200202001011
410000312012213
5114214033341
610403043051
71445204515
oct400660647
9150622034
1067330471
113500841a
121a670487
1310c45720
148d294b5
155d9eb81
hex40361a7

67330471 has 12 divisors (see below), whose sum is σ = 76532232. Its totient is φ = 58875984.

The previous prime is 67330469. The next prime is 67330477. The reversal of 67330471 is 17403376.

It is not a de Polignac number, because 67330471 - 21 = 67330469 is a prime.

It is a super-3 number, since 3×673304713 (a number of 24 digits) contains 333 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 (67330477) 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 11 ways as a sum of consecutive naturals, for example, 2481 + ... + 11866.

It is an arithmetic number, because the mean of its divisors is an integer number (6377686).

Almost surely, 267330471 is an apocalyptic number.

67330471 is a deficient number, since it is larger than the sum of its proper divisors (9201761).

67330471 is a wasteful number, since it uses less digits than its factorization.

67330471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14398 (or 14379 counting only the distinct ones).

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

The square root of 67330471 is about 8205.5146700253. The cubic root of 67330471 is about 406.8214882004.

The spelling of 67330471 in words is "sixty-seven million, three hundred thirty thousand, four hundred seventy-one".

Divisors: 1 13 19 247 361 4693 14347 186511 272593 3543709 5179267 67330471