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169966230 = 23575315271
BaseRepresentation
bin10100010000101…
…11101010010110
3102211211011211120
422020113222112
5322002404410
624510544410
74132455240
oct1210275226
9384734746
10169966230
1187a3a165
1248b08106
132929cb45
1418805090
15edc5570
hexa217a96

169966230 has 64 divisors (see below), whose sum is σ = 475020288. Its totient is φ = 38113920.

The previous prime is 169966219. The next prime is 169966231. The reversal of 169966230 is 32669961.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169966231) 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 31 ways as a sum of consecutive naturals, for example, 3495 + ... + 18765.

It is an arithmetic number, because the mean of its divisors is an integer number (7422192).

Almost surely, 2169966230 is an apocalyptic number.

169966230 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 169966230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237510144).

169966230 is an abundant number, since it is smaller than the sum of its proper divisors (305054058).

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

169966230 is a wasteful number, since it uses less digits than its factorization.

169966230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15341.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 169966230 is about 13037.1097257022. The cubic root of 169966230 is about 553.9291420190.

The spelling of 169966230 in words is "one hundred sixty-nine million, nine hundred sixty-six thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 53 70 105 106 159 210 265 318 371 530 742 795 1113 1590 1855 2226 3710 5565 11130 15271 30542 45813 76355 91626 106897 152710 213794 229065 320691 458130 534485 641382 809363 1068970 1603455 1618726 2428089 3206910 4046815 4856178 5665541 8093630 11331082 12140445 16996623 24280890 28327705 33993246 56655410 84983115 169966230