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168871950 = 232521328867
BaseRepresentation
bin10100001000011…
…00100000001110
3102202202120202200
422010030200032
5321212400300
624431302330
74120250022
oct1204144016
9382676680
10168871950
1187361aa5
124867a9a6
1328ca8a40
14185dc382
15ec5b200
hexa10c80e

168871950 has 72 divisors (see below), whose sum is σ = 488619768. Its totient is φ = 41567040.

The previous prime is 168871949. The next prime is 168872021. The reversal of 168871950 is 59178861.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 168871896 and 168871905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8584 + ... + 20283.

Almost surely, 2168871950 is an apocalyptic number.

168871950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168871950 is an abundant number, since it is smaller than the sum of its proper divisors (319747818).

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

168871950 is a wasteful number, since it uses less digits than its factorization.

168871950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28898 (or 28890 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 168871950 is about 12995.0740667377. The cubic root of 168871950 is about 552.7378090808.

The spelling of 168871950 in words is "one hundred sixty-eight million, eight hundred seventy-one thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 9 10 13 15 18 25 26 30 39 45 50 65 75 78 90 117 130 150 195 225 234 325 390 450 585 650 975 1170 1950 2925 5850 28867 57734 86601 144335 173202 259803 288670 375271 433005 519606 721675 750542 866010 1125813 1299015 1443350 1876355 2165025 2251626 2598030 3377439 3752710 4330050 5629065 6495075 6754878 9381775 11258130 12990150 16887195 18763550 28145325 33774390 56290650 84435975 168871950