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378867438 = 23259356749
BaseRepresentation
bin10110100101010…
…000111011101110
3222101220110102100
4112211100323232
51233442224223
6101332235530
712250214535
oct2645207356
9871813370
10378867438
11184951794
12a6a6bba6
1360652821
143846331c
15233dc043
hex16950eee

378867438 has 24 divisors (see below), whose sum is σ = 834795000. Its totient is φ = 124148304.

The previous prime is 378867427. The next prime is 378867451. The reversal of 378867438 is 834768873.

378867438 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177313 + ... + 179436.

It is an arithmetic number, because the mean of its divisors is an integer number (34783125).

Almost surely, 2378867438 is an apocalyptic number.

378867438 is an abundant number, since it is smaller than the sum of its proper divisors (455927562).

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

378867438 is a wasteful number, since it uses less digits than its factorization.

378867438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356816 (or 356813 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The square root of 378867438 is about 19464.5174098923. The cubic root of 378867438 is about 723.5953384609.

The spelling of 378867438 in words is "three hundred seventy-eight million, eight hundred sixty-seven thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 9 18 59 118 177 354 531 1062 356749 713498 1070247 2140494 3210741 6421482 21048191 42096382 63144573 126289146 189433719 378867438