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168199460 = 2251113232557
BaseRepresentation
bin10100000011010…
…00010100100100
3102201111102021122
422001220110210
5321024340320
624405033112
74111446302
oct1201502444
9381442248
10168199460
1186a42820
12483b5798
1328b01910
14184a5272
15eb76d25
hexa068524

168199460 has 96 divisors (see below), whose sum is σ = 433181952. Its totient is φ = 53982720.

The previous prime is 168199433. The next prime is 168199463. The reversal of 168199460 is 64991861.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (168199463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64502 + ... + 67058.

It is an arithmetic number, because the mean of its divisors is an integer number (4512312).

Almost surely, 2168199460 is an apocalyptic number.

168199460 is a gapful number since it is divisible by the number (10) 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 168199460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216590976).

168199460 is an abundant number, since it is smaller than the sum of its proper divisors (264982492).

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

168199460 is a wasteful number, since it uses less digits than its factorization.

168199460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613 (or 2611 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 168199460 is about 12969.1734509181. The cubic root of 168199460 is about 552.0031199502.

The spelling of 168199460 in words is "one hundred sixty-eight million, one hundred ninety-nine thousand, four hundred sixty".

Divisors: 1 2 4 5 10 11 13 20 22 23 26 44 46 52 55 65 92 110 115 130 143 220 230 253 260 286 299 460 506 572 598 715 1012 1196 1265 1430 1495 2530 2557 2860 2990 3289 5060 5114 5980 6578 10228 12785 13156 16445 25570 28127 32890 33241 51140 56254 58811 65780 66482 112508 117622 132964 140635 166205 235244 281270 294055 332410 365651 562540 588110 646921 664820 731302 764543 1176220 1293842 1462604 1529086 1828255 2587684 3058172 3234605 3656510 3822715 6469210 7313020 7645430 8409973 12938420 15290860 16819946 33639892 42049865 84099730 168199460