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378825838 = 2199969101
BaseRepresentation
bin10110100101000…
…110110001101110
3222101211100100121
4112211012301232
51233434411323
6101331315154
712246652336
oct2645066156
9871740317
10378825838
11184923506
12a6a4baba
1360639901
14384520c6
15233cea5d
hex16946c6e

378825838 has 8 divisors (see below), whose sum is σ = 598146120. Its totient is φ = 179443800.

The previous prime is 378825823. The next prime is 378825871. The reversal of 378825838 is 838528873.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4984513 + ... + 4984588.

It is an arithmetic number, because the mean of its divisors is an integer number (74768265).

Almost surely, 2378825838 is an apocalyptic number.

378825838 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

378825838 is a deficient number, since it is larger than the sum of its proper divisors (219320282).

378825838 is a wasteful number, since it uses less digits than its factorization.

378825838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9969122.

The product of its digits is 2580480, while the sum is 52.

The square root of 378825838 is about 19463.4487694242. The cubic root of 378825838 is about 723.5688536759.

The spelling of 378825838 in words is "three hundred seventy-eight million, eight hundred twenty-five thousand, eight hundred thirty-eight".

Divisors: 1 2 19 38 9969101 19938202 189412919 378825838