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381847068 = 223361149389
BaseRepresentation
bin10110110000101…
…000011000011100
3222121111211201000
4112300220120130
51240223101233
6101520150300
712314434521
oct2660503034
9877454630
10381847068
111865a7399
12a7a68390
1361156b15
14389db148
15237c9d13
hex16c2861c

381847068 has 96 divisors (see below), whose sum is σ = 1015560000. Its totient is φ = 124035840.

The previous prime is 381847049. The next prime is 381847097. The reversal of 381847068 is 860748183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 981418 + ... + 981806.

It is an arithmetic number, because the mean of its divisors is an integer number (10578750).

Almost surely, 2381847068 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 381847068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507780000).

381847068 is an abundant number, since it is smaller than the sum of its proper divisors (633712932).

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

381847068 is a wasteful number, since it uses less digits than its factorization.

381847068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 381847068 is about 19540.9075531307. The cubic root of 381847068 is about 725.4873096381.

The spelling of 381847068 in words is "three hundred eighty-one million, eight hundred forty-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 61 108 122 149 183 244 298 366 389 447 549 596 732 778 894 1098 1167 1341 1556 1647 1788 2196 2334 2682 3294 3501 4023 4668 5364 6588 7002 8046 9089 10503 14004 16092 18178 21006 23729 27267 36356 42012 47458 54534 57961 71187 81801 94916 109068 115922 142374 163602 173883 213561 231844 245403 284748 327204 347766 427122 490806 521649 640683 695532 854244 981612 1043298 1281366 1564947 2086596 2562732 3129894 3535621 6259788 7071242 10606863 14142484 21213726 31820589 42427452 63641178 95461767 127282356 190923534 381847068