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380446880 = 255111931367
BaseRepresentation
bin10110101011010…
…010100010100000
3222111212201000012
4112223102202200
51234343300010
6101430144052
712266513402
oct2653224240
9874781005
10380446880
11185830410
12a74b2028
1360a866c8
1438754b72
1523600005
hex16ad28a0

380446880 has 192 divisors, whose sum is σ = 1068318720. Its totient is φ = 126489600.

The previous prime is 380446819. The next prime is 380446883. The reversal of 380446880 is 88644083.

It is not an unprimeable number, because it can be changed into a prime (380446883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1036457 + ... + 1036823.

It is an arithmetic number, because the mean of its divisors is an integer number (5564160).

Almost surely, 2380446880 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 380446880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534159360).

380446880 is an abundant number, since it is smaller than the sum of its proper divisors (687871840).

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

380446880 is a wasteful number, since it uses less digits than its factorization.

380446880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 380446880 is about 19505.0475518518. The cubic root of 380446880 is about 724.5994648482.

The spelling of 380446880 in words is "three hundred eighty million, four hundred forty-six thousand, eight hundred eighty".