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378838030 = 25172279817
BaseRepresentation
bin10110100101001…
…001110000001110
3222101211222002011
4112211021300032
51233440304110
6101331451434
712250033024
oct2645116016
9871758064
10378838030
1118493168a
12a6a56b7a
136064231c
1438456714
15233d348a
hex16949c0e

378838030 has 32 divisors (see below), whose sum is σ = 725275296. Its totient is φ = 141978624.

The previous prime is 378838027. The next prime is 378838039. The reversal of 378838030 is 30838873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378838039) 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, 33682 + ... + 43498.

It is an arithmetic number, because the mean of its divisors is an integer number (22664853).

Almost surely, 2378838030 is an apocalyptic number.

378838030 is a deficient number, since it is larger than the sum of its proper divisors (346437266).

378838030 is a wasteful number, since it uses less digits than its factorization.

378838030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10068.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 378838030 is about 19463.7619693624. The cubic root of 378838030 is about 723.5766159560.

The spelling of 378838030 in words is "three hundred seventy-eight million, eight hundred thirty-eight thousand, thirty".

Divisors: 1 2 5 10 17 34 85 170 227 454 1135 2270 3859 7718 9817 19295 19634 38590 49085 98170 166889 333778 834445 1668890 2228459 4456918 11142295 22284590 37883803 75767606 189419015 378838030