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67023427 = 151144357
BaseRepresentation
bin1111111110101…
…1001001000011
311200010010212011
43333223021003
5114124222202
610352313351
71442455402
oct377531103
9150103764
1067023427
1134918769
121a542857
1310b68a43
148c89639
155d3dbd7
hex3feb243

67023427 has 4 divisors (see below), whose sum is σ = 67069296. Its totient is φ = 66977560.

The previous prime is 67023421. The next prime is 67023443. The reversal of 67023427 is 72432076.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67023427 - 23 = 67023419 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67023421) 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, 20668 + ... + 23689.

It is an arithmetic number, because the mean of its divisors is an integer number (16767324).

Almost surely, 267023427 is an apocalyptic number.

67023427 is a deficient number, since it is larger than the sum of its proper divisors (45869).

67023427 is a wasteful number, since it uses less digits than its factorization.

67023427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45868.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 67023427 is about 8186.7836785883. The cubic root of 67023427 is about 406.2021427807.

The spelling of 67023427 in words is "sixty-seven million, twenty-three thousand, four hundred twenty-seven".

Divisors: 1 1511 44357 67023427