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67020241 = 287923279
BaseRepresentation
bin1111111110101…
…0010111010001
311200002222111011
43333222113101
5114124121431
610352250521
71442443201
oct377522721
9150088434
1067020241
1134916332
121a540a41
1310b67462
148c88401
155d3ccb1
hex3fea5d1

67020241 has 4 divisors (see below), whose sum is σ = 67046400. Its totient is φ = 66994084.

The previous prime is 67020211. The next prime is 67020251. The reversal of 67020241 is 14202076.

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 a de Polignac number, because none of the positive numbers 2k-67020241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67020211) 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, 8761 + ... + 14518.

It is an arithmetic number, because the mean of its divisors is an integer number (16761600).

Almost surely, 267020241 is an apocalyptic number.

It is an amenable number.

67020241 is a deficient number, since it is larger than the sum of its proper divisors (26159).

67020241 is a wasteful number, since it uses less digits than its factorization.

67020241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26158.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 67020241 is about 8186.5890943665. The cubic root of 67020241 is about 406.1957063221.

The spelling of 67020241 in words is "sixty-seven million, twenty thousand, two hundred forty-one".

Divisors: 1 2879 23279 67020241