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380666304 = 263641199
BaseRepresentation
bin10110101100001…
…000000111000000
3222112021212000000
4112230020013000
51234422310204
6101435000000
712301416204
oct2654100700
9875255000
10380666304
11185970257
12a7599000
1360b32545
14387b0b04
1523645039
hex16b081c0

380666304 has 196 divisors, whose sum is σ = 1166012400. Its totient is φ = 123171840.

The previous prime is 380666213. The next prime is 380666317. The reversal of 380666304 is 403666083.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1912797 + ... + 1912995.

Almost surely, 2380666304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380666304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583006200).

380666304 is an abundant number, since it is smaller than the sum of its proper divisors (785346096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

380666304 is an equidigital number, since it uses as much as digits as its factorization.

380666304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 380666304 is about 19510.6715414924. The cubic root of 380666304 is about 724.7387431235.

The spelling of 380666304 in words is "three hundred eighty million, six hundred sixty-six thousand, three hundred four".