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67895241020405 = 537367001302813
BaseRepresentation
bin11110111000000000101111…
…01110010001001111110101
322220101201111002021100212022
433130000113232101033311
532344343423200123110
6400222350530002525
720205161236344251
oct1734002756211765
9286351432240768
1067895241020405
111a6a7234592457
127746676a16445
132bb6655a21756
1412aa20bcb3261
157cb19ead5755
hex3dc017b913f5

67895241020405 has 8 divisors (see below), whose sum is σ = 83676297041592. Its totient is φ = 52848187604928.

The previous prime is 67895241020333. The next prime is 67895241020407. The reversal of 67895241020405 is 50402014259876.

It can be written as a sum of positive squares in 4 ways, for example, as 5896514619076 + 61998726401329 = 2428274^2 + 7873927^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 67895241020405 - 220 = 67895239971829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67895241020407) 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, 183500651222 + ... + 183500651591.

It is an arithmetic number, because the mean of its divisors is an integer number (10459537130199).

Almost surely, 267895241020405 is an apocalyptic number.

It is an amenable number.

67895241020405 is a deficient number, since it is larger than the sum of its proper divisors (15781056021187).

67895241020405 is a wasteful number, since it uses less digits than its factorization.

67895241020405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367001302855.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 67895241020405 in words is "sixty-seven trillion, eight hundred ninety-five billion, two hundred forty-one million, twenty thousand, four hundred five".

Divisors: 1 5 37 185 367001302813 1835006514065 13579048204081 67895241020405