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378838029 = 3285144293
BaseRepresentation
bin10110100101001…
…001110000001101
3222101211222002010
4112211021300031
51233440304104
6101331451433
712250033023
oct2645116015
9871758063
10378838029
11184931689
12a6a56b79
136064231b
1438456713
15233d3489
hex16949c0d

378838029 has 8 divisors (see below), whose sum is σ = 505305952. Its totient is φ = 252464400.

The previous prime is 378838027. The next prime is 378838039. The reversal of 378838029 is 920838873.

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

It is not a de Polignac number, because 378838029 - 21 = 378838027 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378838027) 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, 13594 + ... + 30699.

It is an arithmetic number, because the mean of its divisors is an integer number (63163244).

Almost surely, 2378838029 is an apocalyptic number.

It is an amenable number.

378838029 is a deficient number, since it is larger than the sum of its proper divisors (126467923).

378838029 is a wasteful number, since it uses less digits than its factorization.

378838029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47147.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 378838029 is about 19463.7619436737. The cubic root of 378838029 is about 723.5766153194.

The spelling of 378838029 in words is "three hundred seventy-eight million, eight hundred thirty-eight thousand, twenty-nine".

Divisors: 1 3 2851 8553 44293 132879 126279343 378838029