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164812896 = 25322272521
BaseRepresentation
bin10011101001011…
…01100001100000
3102111010100210100
421310231201200
5314143003041
624204302400
74040613033
oct1164554140
9374110710
10164812896
118503a406
1247241a00
13281b7331
1417c6301a
15e7086b6
hex9d2d860

164812896 has 72 divisors (see below), whose sum is σ = 470938104. Its totient is φ = 54673920.

The previous prime is 164812889. The next prime is 164812913. The reversal of 164812896 is 698218461.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64116 + ... + 66636.

It is an arithmetic number, because the mean of its divisors is an integer number (6540807).

Almost surely, 2164812896 is an apocalyptic number.

164812896 is a gapful number since it is divisible by the number (16) 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 164812896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235469052).

164812896 is an abundant number, since it is smaller than the sum of its proper divisors (306125208).

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

164812896 is a wasteful number, since it uses less digits than its factorization.

164812896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764 (or 2753 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 164812896 is about 12837.9474995032. The cubic root of 164812896 is about 548.2732577903.

The spelling of 164812896 in words is "one hundred sixty-four million, eight hundred twelve thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 227 288 454 681 908 1362 1816 2043 2521 2724 3632 4086 5042 5448 7264 7563 8172 10084 10896 15126 16344 20168 21792 22689 30252 32688 40336 45378 60504 65376 80672 90756 121008 181512 242016 363024 572267 726048 1144534 1716801 2289068 3433602 4578136 5150403 6867204 9156272 10300806 13734408 18312544 20601612 27468816 41203224 54937632 82406448 164812896