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381614880 = 25354119391
BaseRepresentation
bin10110101111101…
…111101100100000
3222121002001012110
4112233233230200
51240143134010
6101511155320
712312446553
oct2657575440
9877061173
10381614880
111864589a9
12a7975b40
13610a522a
143897a69a
1523781120
hex16befb20

381614880 has 96 divisors (see below), whose sum is σ = 1231469568. Its totient is φ = 99276800.

The previous prime is 381614879. The next prime is 381614887. The reversal of 381614880 is 88416183.

381614880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (381614887) 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 15 ways as a sum of consecutive naturals, for example, 9985 + ... + 29375.

It is an arithmetic number, because the mean of its divisors is an integer number (12827808).

Almost surely, 2381614880 is an apocalyptic number.

381614880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381614880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615734784).

381614880 is an abundant number, since it is smaller than the sum of its proper divisors (849854688).

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

381614880 is a wasteful number, since it uses less digits than its factorization.

381614880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19450 (or 19442 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 381614880 is about 19534.9655745793. The cubic root of 381614880 is about 725.3402319065.

The spelling of 381614880 in words is "three hundred eighty-one million, six hundred fourteen thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 41 48 60 80 82 96 120 123 160 164 205 240 246 328 410 480 492 615 656 820 984 1230 1312 1640 1968 2460 3280 3936 4920 6560 9840 19391 19680 38782 58173 77564 96955 116346 155128 193910 232692 290865 310256 387820 465384 581730 620512 775640 795031 930768 1163460 1551280 1590062 1861536 2326920 2385093 3102560 3180124 3975155 4653840 4770186 6360248 7950310 9307680 9540372 11925465 12720496 15900620 19080744 23850930 25440992 31801240 38161488 47701860 63602480 76322976 95403720 127204960 190807440 381614880