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169105068 = 223211439931
BaseRepresentation
bin10100001010001…
…01011010101100
3102210012102112200
422011011122230
5321242330233
624440301500
74122240456
oct1205053254
9383172480
10169105068
1187501160
1248771890
132905ab92
141865d2d6
15eca5313
hexa1456ac

169105068 has 72 divisors (see below), whose sum is σ = 477212736. Its totient is φ = 50047200.

The previous prime is 169105063. The next prime is 169105087. The reversal of 169105068 is 860501961.

169105068 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) 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 (36).

It is not an unprimeable number, because it can be changed into a prime (169105063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12063 + ... + 21993.

Almost surely, 2169105068 is an apocalyptic number.

169105068 is a gapful number since it is divisible by the number (18) 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 169105068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238606368).

169105068 is an abundant number, since it is smaller than the sum of its proper divisors (308107668).

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

169105068 is a wasteful number, since it uses less digits than its factorization.

169105068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9995 (or 9990 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 169105068 is about 13004.0404490297. The cubic root of 169105068 is about 552.9920330388.

The spelling of 169105068 in words is "one hundred sixty-nine million, one hundred five thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 43 44 66 86 99 129 132 172 198 258 387 396 473 516 774 946 1419 1548 1892 2838 4257 5676 8514 9931 17028 19862 29793 39724 59586 89379 109241 119172 178758 218482 327723 357516 427033 436964 655446 854066 983169 1281099 1310892 1708132 1966338 2562198 3843297 3932676 4697363 5124396 7686594 9394726 14092089 15373188 18789452 28184178 42276267 56368356 84552534 169105068