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67070075 = 522682803
BaseRepresentation
bin1111111111011…
…0100001111011
311200012111211212
43333312201323
5114132220300
610353313335
71443041402
oct377664173
9150174755
1067070075
113494a816
121a56584b
1310b84047
148c9c639
155d4c935
hex3ff687b

67070075 has 6 divisors (see below), whose sum is σ = 83166924. Its totient is φ = 53656040.

The previous prime is 67070071. The next prime is 67070119. The reversal of 67070075 is 57007076.

It is a happy number.

It is not a de Polignac number, because 67070075 - 22 = 67070071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67070071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1341377 + ... + 1341426.

It is an arithmetic number, because the mean of its divisors is an integer number (13861154).

Almost surely, 267070075 is an apocalyptic number.

67070075 is a deficient number, since it is larger than the sum of its proper divisors (16096849).

67070075 is a wasteful number, since it uses less digits than its factorization.

67070075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682813 (or 2682808 counting only the distinct ones).

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 67070075 is about 8189.6321651219. The cubic root of 67070075 is about 406.2963592066.

The spelling of 67070075 in words is "sixty-seven million, seventy thousand, seventy-five".

Divisors: 1 5 25 2682803 13414015 67070075