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378496745 = 5116881759
BaseRepresentation
bin10110100011110…
…110011011101001
3222101012121220222
4112203312123221
51233343343440
6101320255425
712244112024
oct2643663351
9871177828
10378496745
11184719230
12a6911575
1360552b93
14383a81bb
15233672b5
hex168f66e9

378496745 has 8 divisors (see below), whose sum is σ = 495486720. Its totient is φ = 275270320.

The previous prime is 378496711. The next prime is 378496747. The reversal of 378496745 is 547694873.

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

It is not a de Polignac number, because 378496745 - 26 = 378496681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (378496747) 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, 3440825 + ... + 3440934.

It is an arithmetic number, because the mean of its divisors is an integer number (61935840).

Almost surely, 2378496745 is an apocalyptic number.

It is an amenable number.

378496745 is a deficient number, since it is larger than the sum of its proper divisors (116989975).

378496745 is a wasteful number, since it uses less digits than its factorization.

378496745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6881775.

The product of its digits is 5080320, while the sum is 53.

The square root of 378496745 is about 19454.9928039051. The cubic root of 378496745 is about 723.3592670993.

The spelling of 378496745 in words is "three hundred seventy-eight million, four hundred ninety-six thousand, seven hundred forty-five".

Divisors: 1 5 11 55 6881759 34408795 75699349 378496745