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381373160 = 23573153829
BaseRepresentation
bin10110101110110…
…100101011101000
3222120121202121212
4112232310223220
51240112420120
6101502052252
712310422050
oct2656645350
9876552555
10381373160
11186303333
12a787a088
136101c1bc
1438916560
15237346c5
hex16bb4ae8

381373160 has 128 divisors (see below), whose sum is σ = 1032652800. Its totient is φ = 124001280.

The previous prime is 381373133. The next prime is 381373183. The reversal of 381373160 is 61373183.

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, 459626 + ... + 460454.

It is an arithmetic number, because the mean of its divisors is an integer number (8067600).

Almost surely, 2381373160 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 381373160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516326400).

381373160 is an abundant number, since it is smaller than the sum of its proper divisors (651279640).

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

381373160 is a wasteful number, since it uses less digits than its factorization.

381373160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 381373160 is about 19528.7777395310. Note that the first 4 decimals coincide. The cubic root of 381373160 is about 725.1870528057.

The spelling of 381373160 in words is "three hundred eighty-one million, three hundred seventy-three thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 20 28 31 35 40 53 56 62 70 106 124 140 155 212 217 248 265 280 310 371 424 434 530 620 742 829 868 1060 1085 1240 1484 1643 1658 1736 1855 2120 2170 2968 3286 3316 3710 4145 4340 5803 6572 6632 7420 8215 8290 8680 11501 11606 13144 14840 16430 16580 23002 23212 25699 29015 32860 33160 43937 46004 46424 51398 57505 58030 65720 87874 92008 102796 115010 116060 128495 175748 179893 205592 219685 230020 232120 256990 307559 351496 359786 439370 460040 513980 615118 719572 878740 899465 1027960 1230236 1362047 1439144 1537795 1757480 1798930 2460472 2724094 3075590 3597860 5448188 6151180 6810235 7195720 9534329 10896376 12302360 13620470 19068658 27240940 38137316 47671645 54481880 76274632 95343290 190686580 381373160