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164261088 = 2533414637
BaseRepresentation
bin10011100101001…
…10110011100000
3102110002022212000
421302212303200
5314022323323
624144404000
74033124205
oct1162466340
9373068760
10164261088
11847a2872
1247016600
1328053114
1417b5bcac
15e649e43
hex9ca6ce0

164261088 has 96 divisors (see below), whose sum is σ = 490885920. Its totient is φ = 53406720.

The previous prime is 164261087. The next prime is 164261107. The reversal of 164261088 is 880162461.

164261088 is a `hidden beast` number, since 1 + 642 + 6 + 1 + 0 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164261081) 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 15 ways as a sum of consecutive naturals, for example, 33106 + ... + 37742.

It is an arithmetic number, because the mean of its divisors is an integer number (5113395).

Almost surely, 2164261088 is an apocalyptic number.

164261088 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 164261088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245442960).

164261088 is an abundant number, since it is smaller than the sum of its proper divisors (326624832).

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

164261088 is a wasteful number, since it uses less digits than its factorization.

164261088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697 (or 4683 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 164261088 is about 12816.4381947560. The cubic root of 164261088 is about 547.6606846810.

The spelling of 164261088 in words is "one hundred sixty-four million, two hundred sixty-one thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 41 48 54 72 82 96 108 123 144 164 216 246 288 328 369 432 492 656 738 864 984 1107 1312 1476 1968 2214 2952 3936 4428 4637 5904 8856 9274 11808 13911 17712 18548 27822 35424 37096 41733 55644 74192 83466 111288 125199 148384 166932 190117 222576 250398 333864 380234 445152 500796 570351 667728 760468 1001592 1140702 1335456 1520936 1711053 2003184 2281404 3041872 3422106 4006368 4562808 5133159 6083744 6844212 9125616 10266318 13688424 18251232 20532636 27376848 41065272 54753696 82130544 164261088