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168043085 = 5737129763
BaseRepresentation
bin10100000010000…
…10001001001101
3102201012110202222
422001002021031
5321004334320
624401425125
74110225350
oct1201021115
9381173688
10168043085
1186946291
124833b1a5
1328a786a2
1418464297
15eb45825
hexa04224d

168043085 has 16 divisors (see below), whose sum is σ = 236689536. Its totient is φ = 112114368.

The previous prime is 168043067. The next prime is 168043103. The reversal of 168043085 is 580340861.

It is an interprime number because it is at equal distance from previous prime (168043067) and next prime (168043103).

It is a cyclic number.

It is not a de Polignac number, because 168043085 - 216 = 167977549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63587 + ... + 66176.

It is an arithmetic number, because the mean of its divisors is an integer number (14793096).

Almost surely, 2168043085 is an apocalyptic number.

It is an amenable number.

168043085 is a deficient number, since it is larger than the sum of its proper divisors (68646451).

168043085 is a wasteful number, since it uses less digits than its factorization.

168043085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129812.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 168043085 is about 12963.1433302267. The cubic root of 168043085 is about 551.8320011842.

The spelling of 168043085 in words is "one hundred sixty-eight million, forty-three thousand, eighty-five".

Divisors: 1 5 7 35 37 185 259 1295 129763 648815 908341 4541705 4801231 24006155 33608617 168043085