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67679625 = 3531313883
BaseRepresentation
bin1000000100010…
…11010110001001
311201100110222210
410002023112021
5114311222000
610414335333
71451160456
oct402132611
9151313883
1067679625
1135226782
121a7ba549
1311038620
148dba82d
155e1d350
hex408b589

67679625 has 32 divisors (see below), whose sum is σ = 121290624. Its totient is φ = 33316800.

The previous prime is 67679617. The next prime is 67679627. The reversal of 67679625 is 52697676.

It is not a de Polignac number, because 67679625 - 23 = 67679617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67679627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2067 + ... + 11816.

It is an arithmetic number, because the mean of its divisors is an integer number (3790332).

Almost surely, 267679625 is an apocalyptic number.

67679625 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

67679625 is a deficient number, since it is larger than the sum of its proper divisors (53610999).

67679625 is a wasteful number, since it uses less digits than its factorization.

67679625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13914 (or 13904 counting only the distinct ones).

The product of its digits is 952560, while the sum is 48.

The square root of 67679625 is about 8226.7627290448. The cubic root of 67679625 is about 407.5234909363.

The spelling of 67679625 in words is "sixty-seven million, six hundred seventy-nine thousand, six hundred twenty-five".

Divisors: 1 3 5 13 15 25 39 65 75 125 195 325 375 975 1625 4875 13883 41649 69415 180479 208245 347075 541437 902395 1041225 1735375 2707185 4511975 5206125 13535925 22559875 67679625