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381118060 = 22571311863
BaseRepresentation
bin10110101101110…
…110011001101100
3222120010210200201
4112231312121230
51240031234220
6101452403244
712305310241
oct2655663154
9876123621
10381118060
11186149704
12a7776524
1360c6005b
143888b5c8
15236d3d0a
hex16b7666c

381118060 has 48 divisors (see below), whose sum is σ = 815173632. Its totient is φ = 149643200.

The previous prime is 381118051. The next prime is 381118063. The reversal of 381118060 is 60811183.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (381118063) 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, 441189 + ... + 442051.

It is an arithmetic number, because the mean of its divisors is an integer number (16982784).

Almost surely, 2381118060 is an apocalyptic number.

It is an amenable number.

381118060 is an abundant number, since it is smaller than the sum of its proper divisors (434055572).

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

381118060 is a wasteful number, since it uses less digits than its factorization.

381118060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 381118060 is about 19522.2452602153. The cubic root of 381118060 is about 725.0253245217.

The spelling of 381118060 in words is "three hundred eighty-one million, one hundred eighteen thousand, sixty".

Divisors: 1 2 4 5 10 20 71 142 284 311 355 622 710 863 1244 1420 1555 1726 3110 3452 4315 6220 8630 17260 22081 44162 61273 88324 110405 122546 220810 245092 268393 306365 441620 536786 612730 1073572 1225460 1341965 2683930 5367860 19055903 38111806 76223612 95279515 190559030 381118060