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67682745 = 32513127911
BaseRepresentation
bin1000000100011…
…00000110111001
311201100122021100
410002030012321
5114311321440
610414402013
71451202534
oct402140671
9151318240
1067682745
1135229059
121a800309
1311039b80
148dbba1b
155e1e230
hex408c1b9

67682745 has 48 divisors (see below), whose sum is σ = 127475712. Its totient is φ = 33022080.

The previous prime is 67682717. The next prime is 67682761. The reversal of 67682745 is 54728676.

It is not a de Polignac number, because 67682745 - 213 = 67674553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 67682745.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73840 + ... + 74750.

It is an arithmetic number, because the mean of its divisors is an integer number (2655744).

Almost surely, 267682745 is an apocalyptic number.

67682745 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

67682745 is a deficient number, since it is larger than the sum of its proper divisors (59792967).

67682745 is a wasteful number, since it uses less digits than its factorization.

67682745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1059 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 67682745 is about 8226.9523518737. The cubic root of 67682745 is about 407.5297530561.

The spelling of 67682745 in words is "sixty-seven million, six hundred eighty-two thousand, seven hundred forty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 127 195 381 585 635 911 1143 1651 1905 2733 4555 4953 5715 8199 8255 11843 13665 14859 24765 35529 40995 59215 74295 106587 115697 177645 347091 532935 578485 1041273 1504061 1735455 4512183 5206365 7520305 13536549 22560915 67682745