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378788106 = 23457138143
BaseRepresentation
bin10110100100111…
…101100100001010
3222101202102121010
4112210331210022
51233432204411
6101330424350
712246434334
oct2644754412
9871672533
10378788106
111848a8124
12a6a320b6
1360625698
1438442454
15233c37a6
hex1693d90a

378788106 has 16 divisors (see below), whose sum is σ = 759239424. Its totient is φ = 125985504.

The previous prime is 378788029. The next prime is 378788107. The reversal of 378788106 is 601887873.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (378788107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66330 + ... + 71813.

It is an arithmetic number, because the mean of its divisors is an integer number (47452464).

Almost surely, 2378788106 is an apocalyptic number.

378788106 is an abundant number, since it is smaller than the sum of its proper divisors (380451318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378788106 is a wasteful number, since it uses less digits than its factorization.

378788106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138605.

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 378788106 is about 19462.4794412223. The cubic root of 378788106 is about 723.5448297897.

The spelling of 378788106 in words is "three hundred seventy-eight million, seven hundred eighty-eight thousand, one hundred six".

Divisors: 1 2 3 6 457 914 1371 2742 138143 276286 414429 828858 63131351 126262702 189394053 378788106