Search a number
-
+
67786485 = 35132911987
BaseRepresentation
bin1000000101001…
…01011011110101
311201112220120120
410002211123311
5114323131420
610420522153
71452114144
oct402453365
9151486516
1067786485
1135299a98
121a850359
1311075160
14900775b
155e3ed40
hex40a56f5

67786485 has 32 divisors (see below), whose sum is σ = 120839040. Its totient is φ = 32218368.

The previous prime is 67786421. The next prime is 67786487. The reversal of 67786485 is 58468776.

It is not a de Polignac number, because 67786485 - 26 = 67786421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67786487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339 + ... + 11648.

It is an arithmetic number, because the mean of its divisors is an integer number (3776220).

Almost surely, 267786485 is an apocalyptic number.

67786485 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

67786485 is a deficient number, since it is larger than the sum of its proper divisors (53052555).

67786485 is a wasteful number, since it uses less digits than its factorization.

67786485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12037.

The product of its digits is 2257920, while the sum is 51.

The square root of 67786485 is about 8233.2548241871. The cubic root of 67786485 is about 407.7378590513.

The spelling of 67786485 in words is "sixty-seven million, seven hundred eighty-six thousand, four hundred eighty-five".

Divisors: 1 3 5 13 15 29 39 65 87 145 195 377 435 1131 1885 5655 11987 35961 59935 155831 179805 347623 467493 779155 1042869 1738115 2337465 4519099 5214345 13557297 22595495 67786485