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378057129 = 3179704017
BaseRepresentation
bin10110100010001…
…011000110101001
3222100101021212220
4112202023012221
51233240312004
6101303024253
712240301242
oct2642130651
9870337786
10378057129
11184448a0a
12a673b089
136042aa58
14382d1cc9
15232cbdd9
hex1688b1a9

378057129 has 8 divisors (see below), whose sum is σ = 506892960. Its totient is φ = 250629696.

The previous prime is 378057103. The next prime is 378057133. The reversal of 378057129 is 921750873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 378057129 - 211 = 378055081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378057139) 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 7 ways as a sum of consecutive naturals, for example, 351472 + ... + 352545.

It is an arithmetic number, because the mean of its divisors is an integer number (63361620).

Almost surely, 2378057129 is an apocalyptic number.

It is an amenable number.

378057129 is a deficient number, since it is larger than the sum of its proper divisors (128835831).

378057129 is a wasteful number, since it uses less digits than its factorization.

378057129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704199.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 378057129 is about 19443.6912390626. The cubic root of 378057129 is about 723.0791030836.

The spelling of 378057129 in words is "three hundred seventy-eight million, fifty-seven thousand, one hundred twenty-nine".

Divisors: 1 3 179 537 704017 2112051 126019043 378057129