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379840923 = 327113117681
BaseRepresentation
bin10110101000111…
…110100110011011
3222110201220210100
4112220332212123
51234214402143
6101405150443
712261410640
oct2650764633
9873656710
10379840923
11185457120
12a725b423
1360903957
1438637dc7
15235306d3
hex16a3e99b

379840923 has 48 divisors (see below), whose sum is σ = 706148352. Its totient is φ = 190944000.

The previous prime is 379840873. The next prime is 379840931. The reversal of 379840923 is 329048973.

It is a happy number.

It is not a de Polignac number, because 379840923 - 29 = 379840411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (379841923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12643 + ... + 30323.

It is an arithmetic number, because the mean of its divisors is an integer number (14711424).

Almost surely, 2379840923 is an apocalyptic number.

379840923 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

379840923 is a deficient number, since it is larger than the sum of its proper divisors (326307429).

379840923 is a wasteful number, since it uses less digits than its factorization.

379840923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17736 (or 17733 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 379840923 is about 19489.5080235495. The cubic root of 379840923 is about 724.2145583427.

The spelling of 379840923 in words is "three hundred seventy-nine million, eight hundred forty thousand, nine hundred twenty-three".

Divisors: 1 3 7 9 11 21 31 33 63 77 93 99 217 231 279 341 651 693 1023 1953 2387 3069 7161 17681 21483 53043 123767 159129 194491 371301 548111 583473 1113903 1361437 1644333 1750419 3836777 4084311 4932999 6029221 11510331 12252933 18087663 34530993 42204547 54262989 126613641 379840923