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164284670 = 25116722291
BaseRepresentation
bin10011100101011…
…00100011111110
3102110010112012102
421302230203332
5314024102140
624145105102
74033253024
oct1162544376
9373115172
10164284670
1184809560
1247028192
1328060a84
1417b66714
15e651e15
hex9cac8fe

164284670 has 32 divisors (see below), whose sum is σ = 327424896. Its totient is φ = 58845600.

The previous prime is 164284669. The next prime is 164284709. The reversal of 164284670 is 76482461.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 3776 + ... + 18515.

It is an arithmetic number, because the mean of its divisors is an integer number (10232028).

Almost surely, 2164284670 is an apocalyptic number.

164284670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164284670 is a deficient number, since it is larger than the sum of its proper divisors (163140226).

164284670 is a wasteful number, since it uses less digits than its factorization.

164284670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22376.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 164284670 is about 12817.3581521310. The cubic root of 164284670 is about 547.6868915699.

The spelling of 164284670 in words is "one hundred sixty-four million, two hundred eighty-four thousand, six hundred seventy".

Divisors: 1 2 5 10 11 22 55 67 110 134 335 670 737 1474 3685 7370 22291 44582 111455 222910 245201 490402 1226005 1493497 2452010 2986994 7467485 14934970 16428467 32856934 82142335 164284670