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168008310 = 23352943499
BaseRepresentation
bin10100000001110…
…01101001110110
3102201010201002000
422000321221312
5321002231220
624401000130
74110022101
oct1200715166
9381121060
10168008310
1186922148
1248323046
1328a65902
1418455738
15eb3a390
hexa039a76

168008310 has 128 divisors (see below), whose sum is σ = 475200000. Its totient is φ = 42166656.

The previous prime is 168008303. The next prime is 168008311. The reversal of 168008310 is 13800861.

It is a super-2 number, since 2×1680083102 = 56453584458112200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168008311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 336441 + ... + 336939.

It is an arithmetic number, because the mean of its divisors is an integer number (3712500).

Almost surely, 2168008310 is an apocalyptic number.

168008310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 168008310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237600000).

168008310 is an abundant number, since it is smaller than the sum of its proper divisors (307191690).

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

168008310 is a wasteful number, since it uses less digits than its factorization.

168008310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 168008310 is about 12961.8019580612. The cubic root of 168008310 is about 551.7939330071.

The spelling of 168008310 in words is "one hundred sixty-eight million, eight thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 29 30 43 45 54 58 86 87 90 129 135 145 174 215 258 261 270 290 387 430 435 499 522 645 774 783 870 998 1161 1247 1290 1305 1497 1566 1935 2322 2494 2495 2610 2994 3741 3870 3915 4491 4990 5805 6235 7482 7485 7830 8982 11223 11610 12470 13473 14471 14970 18705 21457 22446 22455 26946 28942 33669 37410 42914 43413 44910 56115 64371 67338 67365 72355 86826 107285 112230 128742 130239 134730 144710 168345 193113 214570 217065 260478 321855 336690 386226 390717 434130 579339 622253 643710 651195 781434 965565 1158678 1244506 1302390 1866759 1931130 1953585 2896695 3111265 3733518 3907170 5600277 5793390 6222530 9333795 11200554 16800831 18667590 28001385 33601662 56002770 84004155 168008310