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378089973 = 32131320687
BaseRepresentation
bin10110100010010…
…011000111110101
3222100102221221100
4112202103013311
51233242334343
6101303440313
712240466062
oct2642230765
9870387840
10378089973
11184470658
12a6756099
136043c9a1
14382ddc69
15232d69d3
hex168931f5

378089973 has 12 divisors (see below), whose sum is σ = 550300608. Its totient is φ = 250135080.

The previous prime is 378089963. The next prime is 378089989. The reversal of 378089973 is 379980873.

It is not a de Polignac number, because 378089973 - 25 = 378089941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378089923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159165 + ... + 161522.

It is an arithmetic number, because the mean of its divisors is an integer number (45858384).

Almost surely, 2378089973 is an apocalyptic number.

It is an amenable number.

378089973 is a deficient number, since it is larger than the sum of its proper divisors (172210635).

378089973 is a wasteful number, since it uses less digits than its factorization.

378089973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320824 (or 320821 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 378089973 is about 19444.5358134361. The cubic root of 378089973 is about 723.1000418259.

The spelling of 378089973 in words is "three hundred seventy-eight million, eighty-nine thousand, nine hundred seventy-three".

Divisors: 1 3 9 131 393 1179 320687 962061 2886183 42009997 126029991 378089973