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67386145 = 588315263
BaseRepresentation
bin1000000010000…
…11101100100001
311200210120102011
410001003230201
5114222324040
610404152521
71445526031
oct401035441
9150716364
1067386145
1135046232
121a698741
1310c64b78
148d418c1
155db13ea
hex4043b21

67386145 has 8 divisors (see below), whose sum is σ = 80960256. Its totient is φ = 53844336.

The previous prime is 67386097. The next prime is 67386149. The reversal of 67386145 is 54168376.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-67386145 is a prime.

It is a super-2 number, since 2×673861452 = 9081785075922050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67386098 and 67386107.

It is not an unprimeable number, because it can be changed into a prime (67386149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3217 + ... + 12046.

It is an arithmetic number, because the mean of its divisors is an integer number (10120032).

Almost surely, 267386145 is an apocalyptic number.

It is an amenable number.

67386145 is a deficient number, since it is larger than the sum of its proper divisors (13574111).

67386145 is a wasteful number, since it uses less digits than its factorization.

67386145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16151.

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

The square root of 67386145 is about 8208.9064436135. The cubic root of 67386145 is about 406.9335877165.

The spelling of 67386145 in words is "sixty-seven million, three hundred eighty-six thousand, one hundred forty-five".

Divisors: 1 5 883 4415 15263 76315 13477229 67386145