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67814361 = 332511643
BaseRepresentation
bin1000000101011…
…00001111011001
311201121022211000
410002230033121
5114330024421
610421255213
71452261336
oct402541731
9151538730
1067814361
1135308a2a
121a864509
1311084a54
14901398d
155e48226
hex40ac3d9

67814361 has 8 divisors (see below), whose sum is σ = 100465760. Its totient is φ = 45209556.

The previous prime is 67814297. The next prime is 67814381. The reversal of 67814361 is 16341876.

It is not a de Polignac number, because 67814361 - 26 = 67814297 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67814381) 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, 1255795 + ... + 1255848.

It is an arithmetic number, because the mean of its divisors is an integer number (12558220).

Almost surely, 267814361 is an apocalyptic number.

It is an amenable number.

67814361 is a deficient number, since it is larger than the sum of its proper divisors (32651399).

67814361 is a wasteful number, since it uses less digits than its factorization.

67814361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511652 (or 2511646 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 67814361 is about 8234.9475408165. The cubic root of 67814361 is about 407.7937430665.

The spelling of 67814361 in words is "sixty-seven million, eight hundred fourteen thousand, three hundred sixty-one".

Divisors: 1 3 9 27 2511643 7534929 22604787 67814361