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164160864 = 2533727143
BaseRepresentation
bin10011100100011…
…10010101100000
3102102220020101000
421302032111200
5314011121424
624142312000
74032226050
oct1162162540
9372806330
10164160864
118473453a
1246b88600
132801960a
1417b33560
15e62a3c9
hex9c8e560

164160864 has 96 divisors (see below), whose sum is σ = 547223040. Its totient is φ = 46901376.

The previous prime is 164160859. The next prime is 164160877. The reversal of 164160864 is 468061461.

164160864 is a `hidden beast` number, since 1 + 6 + 41 + 608 + 6 + 4 = 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7524 + ... + 19619.

It is an arithmetic number, because the mean of its divisors is an integer number (5700240).

Almost surely, 2164160864 is an apocalyptic number.

164160864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

164160864 is an abundant number, since it is smaller than the sum of its proper divisors (383062176).

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

164160864 is a wasteful number, since it uses less digits than its factorization.

164160864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27169 (or 27155 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 164160864 is about 12812.5276194824. The cubic root of 164160864 is about 547.5492768558.

It can be divided in two parts, 164 and 160864, that added together give a triangular number (161028 = T567).

The spelling of 164160864 in words is "one hundred sixty-four million, one hundred sixty thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 72 84 96 108 112 126 144 168 189 216 224 252 288 336 378 432 504 672 756 864 1008 1512 2016 3024 6048 27143 54286 81429 108572 162858 190001 217144 244287 325716 380002 434288 488574 570003 651432 732861 760004 868576 977148 1140006 1302864 1465722 1520008 1710009 1954296 2280012 2605728 2931444 3040016 3420018 3908592 4560024 5130027 5862888 6080032 6840036 7817184 9120048 10260054 11725776 13680072 18240096 20520108 23451552 27360144 41040216 54720288 82080432 164160864