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378573885 = 3352804251
BaseRepresentation
bin10110100100001…
…001010000111101
3222101100112202000
4112210021100331
51233403331020
6101322052513
712244552644
oct2644112075
9871315660
10378573885
11184771188
12a694a139
136057c021
14383c835b
1523380090
hex1690943d

378573885 has 16 divisors (see below), whose sum is σ = 673020480. Its totient is φ = 201906000.

The previous prime is 378573863. The next prime is 378573889. The reversal of 378573885 is 588375873.

It is not a de Polignac number, because 378573885 - 26 = 378573821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378573889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1401991 + ... + 1402260.

It is an arithmetic number, because the mean of its divisors is an integer number (42063780).

Almost surely, 2378573885 is an apocalyptic number.

It is an amenable number.

378573885 is a deficient number, since it is larger than the sum of its proper divisors (294446595).

378573885 is a wasteful number, since it uses less digits than its factorization.

378573885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804265 (or 2804259 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The square root of 378573885 is about 19456.9752274088. The cubic root of 378573885 is about 723.4084054730.

The spelling of 378573885 in words is "three hundred seventy-eight million, five hundred seventy-three thousand, eight hundred eighty-five".

Divisors: 1 3 5 9 15 27 45 135 2804251 8412753 14021255 25238259 42063765 75714777 126191295 378573885