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378769444 = 223722632
BaseRepresentation
bin10110100100111…
…001000000100100
3222101201110222221
4112210321000210
51233431110234
6101330202124
712246326044
oct2644710044
9871643887
10378769444
111848950a9
12a6a23344
136061a041
1438439724
15233bceb4
hex16939024

378769444 has 27 divisors (see below), whose sum is σ = 683845617. Its totient is φ = 183565584.

The previous prime is 378769411. The next prime is 378769453. The reversal of 378769444 is 444967873.

The square root of 378769444 is 19462.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 338928100 + 39841344 = 18410^2 + 6312^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378769391 and 378769400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1440057 + ... + 1440319.

Almost surely, 2378769444 is an apocalyptic number.

378769444 is the 19462-nd square number.

It is an amenable number.

378769444 is a deficient number, since it is larger than the sum of its proper divisors (305076173).

378769444 is an equidigital number, since it uses as much as digits as its factorization.

378769444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 302 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 52.

The cubic root of 378769444 is about 723.5329471433.

The spelling of 378769444 in words is "three hundred seventy-eight million, seven hundred sixty-nine thousand, four hundred forty-four".

Divisors: 1 2 4 37 74 148 263 526 1052 1369 2738 5476 9731 19462 38924 69169 138338 276676 360047 720094 1440188 2559253 5118506 10237012 94692361 189384722 378769444