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67885330 = 2550913337
BaseRepresentation
bin1000000101111…
…01100100010010
311201201221011111
410002331210102
5114334312310
610423003534
71453005262
oct402754422
9151657144
1067885330
1135357287
121a8995aa
13110ab146
1490317a2
155e5e28a
hex40bd912

67885330 has 16 divisors (see below), whose sum is σ = 122442840. Its totient is φ = 27098752.

The previous prime is 67885313. The next prime is 67885331. The reversal of 67885330 is 3358876.

It can be written as a sum of positive squares in 4 ways, for example, as 57198969 + 10686361 = 7563^2 + 3269^2 .

It is not an unprimeable number, because it can be changed into a prime (67885331) 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 7 ways as a sum of consecutive naturals, for example, 1579 + ... + 11758.

Almost surely, 267885330 is an apocalyptic number.

67885330 is a deficient number, since it is larger than the sum of its proper divisors (54557510).

67885330 is a wasteful number, since it uses less digits than its factorization.

67885330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13853.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 67885330 is about 8239.2554275250. The cubic root of 67885330 is about 407.9359480701.

The spelling of 67885330 in words is "sixty-seven million, eight hundred eighty-five thousand, three hundred thirty".

Divisors: 1 2 5 10 509 1018 2545 5090 13337 26674 66685 133370 6788533 13577066 33942665 67885330