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378668094481 = 17174771274509
BaseRepresentation
bin1011000001010100110…
…00001001010000010001
31100012102000211021212001
411200222120021100101
522201003013010411
6445542511234001
736233514460435
oct5405230112021
91305360737761
10378668094481
111366572a4016
126147b218901
1329929037341
14144830529c5
159cb3c88dc1
hex582a609411

378668094481 has 8 divisors (see below), whose sum is σ = 400965944040. Its totient is φ = 356372828928.

The previous prime is 378668094463. The next prime is 378668094521. The reversal of 378668094481 is 184490866873.

It can be written as a sum of positive squares in 4 ways, for example, as 111783235600 + 266884858881 = 334340^2 + 516609^2 .

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

It is not a de Polignac number, because 378668094481 - 213 = 378668086289 is a prime.

It is a super-2 number, since 2×3786680944812 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378668094461) 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 7 ways as a sum of consecutive naturals, for example, 340146 + ... + 934363.

It is an arithmetic number, because the mean of its divisors is an integer number (50120743005).

Almost surely, 2378668094481 is an apocalyptic number.

It is an amenable number.

378668094481 is a deficient number, since it is larger than the sum of its proper divisors (22297849559).

378668094481 is a wasteful number, since it uses less digits than its factorization.

378668094481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292003.

The product of its (nonzero) digits is 55738368, while the sum is 64.

The spelling of 378668094481 in words is "three hundred seventy-eight billion, six hundred sixty-eight million, ninety-four thousand, four hundred eighty-one".

Divisors: 1 17 17477 297109 1274509 21666653 22274593793 378668094481