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380509824 = 2731019811
BaseRepresentation
bin10110101011100…
…001111010000000
3222111222220100110
4112223201322000
51234402303244
6101431351320
712300165042
oct2653417200
9874886313
10380509824
11185873732
12a7522540
1360aa9256
143876da92
15236139b9
hex16ae1e80

380509824 has 64 divisors (see below), whose sum is σ = 1020840480. Its totient is φ = 125568000.

The previous prime is 380509819. The next prime is 380509837. The reversal of 380509824 is 428905083.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

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, 33879 + ... + 43689.

Almost surely, 2380509824 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 380509824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510420240).

380509824 is an abundant number, since it is smaller than the sum of its proper divisors (640330656).

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

380509824 is a wasteful number, since it uses less digits than its factorization.

380509824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9929 (or 9917 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 380509824 is about 19506.6610161760. The cubic root of 380509824 is about 724.6394237106.

It can be divided in two parts, 38050 and 9824, that added together give a palindrome (47874).

The spelling of 380509824 in words is "three hundred eighty million, five hundred nine thousand, eight hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 101 128 192 202 303 384 404 606 808 1212 1616 2424 3232 4848 6464 9696 9811 12928 19392 19622 29433 38784 39244 58866 78488 117732 156976 235464 313952 470928 627904 941856 990911 1255808 1883712 1981822 2972733 3767424 3963644 5945466 7927288 11890932 15854576 23781864 31709152 47563728 63418304 95127456 126836608 190254912 380509824