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164805354 = 2347197649
BaseRepresentation
bin10011101001010…
…11101011101010
3102111002222110000
421310223223222
5314142232404
624204203430
74040552040
oct1164535352
9374088400
10164805354
118503477a
1247239576
13281b3a7c
1417c60390
15e706339
hex9d2baea

164805354 has 80 divisors (see below), whose sum is σ = 444312000. Its totient is φ = 44603136.

The previous prime is 164805343. The next prime is 164805367. The reversal of 164805354 is 453508461.

It is a happy number.

164805354 is a `hidden beast` number, since 1 + 648 + 0 + 5 + 3 + 5 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17722 + ... + 25370.

It is an arithmetic number, because the mean of its divisors is an integer number (5553900).

Almost surely, 2164805354 is an apocalyptic number.

164805354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 164805354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222156000).

164805354 is an abundant number, since it is smaller than the sum of its proper divisors (279506646).

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

164805354 is a wasteful number, since it uses less digits than its factorization.

164805354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7689 (or 7680 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 164805354 is about 12837.6537575992. The cubic root of 164805354 is about 548.2648944885.

The spelling of 164805354 in words is "one hundred sixty-four million, eight hundred five thousand, three hundred fifty-four".

Divisors: 1 2 3 6 7 9 14 18 19 21 27 38 42 54 57 63 81 114 126 133 162 171 189 266 342 378 399 513 567 798 1026 1134 1197 1539 2394 3078 3591 7182 7649 10773 15298 21546 22947 45894 53543 68841 107086 137682 145331 160629 206523 290662 321258 413046 435993 481887 619569 871986 963774 1017317 1239138 1307979 1445661 2034634 2615958 2891322 3051951 3923937 4336983 6103902 7847874 8673966 9155853 11771811 18311706 23543622 27467559 54935118 82402677 164805354