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378828229 = 1342196907
BaseRepresentation
bin10110100101000…
…111010111000101
3222101211110122011
4112211013113011
51233440000404
6101331334221
712246662323
oct2645072705
9871743564
10378828229
1118492528a
12a6a51371
136063aa20
1438452d13
15233d0604
hex169475c5

378828229 has 8 divisors (see below), whose sum is σ = 408124640. Its totient is φ = 349554096.

The previous prime is 378828227. The next prime is 378828271. The reversal of 378828229 is 922828873.

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

It is a cyclic number.

It is not a de Polignac number, because 378828229 - 21 = 378828227 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 (378828227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51394 + ... + 58300.

It is an arithmetic number, because the mean of its divisors is an integer number (51015580).

Almost surely, 2378828229 is an apocalyptic number.

It is an amenable number.

378828229 is a deficient number, since it is larger than the sum of its proper divisors (29296411).

378828229 is a wasteful number, since it uses less digits than its factorization.

378828229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11139.

The product of its digits is 774144, while the sum is 49.

The square root of 378828229 is about 19463.5101921519. The cubic root of 378828229 is about 723.5703759669.

The spelling of 378828229 in words is "three hundred seventy-eight million, eight hundred twenty-eight thousand, two hundred twenty-nine".

Divisors: 1 13 4219 6907 54847 89791 29140633 378828229