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378874129697 = 7255121217121
BaseRepresentation
bin1011000001101101010…
…10000110110100100001
31100012221101111222000222
411200312222012310201
522201413234122242
6450015151252425
736241565652260
oct5406652066441
91305841458028
10378874129697
11136752629358
126151821a115
132995c92567b
14144a25665d7
159cc6dd65d2
hex5836a86d21

378874129697 has 8 divisors (see below), whose sum is σ = 433168762752. Its totient is φ = 324621936000.

The previous prime is 378874129633. The next prime is 378874129703. The reversal of 378874129697 is 796921478873.

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 378874129697 - 26 = 378874129633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378874129697.

It is not an unprimeable number, because it can be changed into a prime (378874129607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10590704 + ... + 10626417.

It is an arithmetic number, because the mean of its divisors is an integer number (54146095344).

Almost surely, 2378874129697 is an apocalyptic number.

It is an amenable number.

378874129697 is a deficient number, since it is larger than the sum of its proper divisors (54294633055).

378874129697 is a wasteful number, since it uses less digits than its factorization.

378874129697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21219679.

The product of its digits is 256048128, while the sum is 71.

The spelling of 378874129697 in words is "three hundred seventy-eight billion, eight hundred seventy-four million, one hundred twenty-nine thousand, six hundred ninety-seven".

Divisors: 1 7 2551 17857 21217121 148519847 54124875671 378874129697