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380883811 = 72115367199
BaseRepresentation
bin10110101100111…
…101001101100011
3222112200220100211
4112230331031203
51240001240221
6101443354551
712303313300
oct2654751543
9875626324
10380883811
11185aa9710
12a7682a57
1360baa549
143882a0a7
15236896e1
hex16b3d363

380883811 has 48 divisors (see below), whose sum is σ = 502329600. Its totient is φ = 285405120.

The previous prime is 380883787. The next prime is 380883821. The reversal of 380883811 is 118388083.

It is not a de Polignac number, because 380883811 - 27 = 380883683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380883821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1913890 + ... + 1914088.

It is an arithmetic number, because the mean of its divisors is an integer number (10465200).

Almost surely, 2380883811 is an apocalyptic number.

380883811 is a deficient number, since it is larger than the sum of its proper divisors (121445789).

380883811 is a wasteful number, since it uses less digits than its factorization.

380883811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 380883811 is about 19516.2447976039. The cubic root of 380883811 is about 724.8767517802.

The spelling of 380883811 in words is "three hundred eighty million, eight hundred eighty-three thousand, eight hundred eleven".

Divisors: 1 7 11 49 53 67 77 199 371 469 539 583 737 1393 2189 2597 3283 3551 4081 5159 9751 10547 13333 15323 24857 28567 36113 39061 73829 93331 107261 116017 146663 173999 273427 516803 653317 706649 812119 1026641 1913989 4946543 5684833 7186487 7773139 34625801 54411973 380883811