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164280960 = 273453169
BaseRepresentation
bin10011100101010…
…11101010000000
3102110010100010000
421302223222000
5314023442320
624145040000
74033236144
oct1162535200
9373110100
10164280960
1184806798
1247026000
132805c18c
1417b65224
15e650c90
hex9caba80

164280960 has 160 divisors (see below), whose sum is σ = 586862100. Its totient is φ = 43794432.

The previous prime is 164280959. The next prime is 164280971. The reversal of 164280960 is 69082461.

164280960 is a `hidden beast` number, since 1 + 642 + 8 + 0 + 9 + 6 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 162409536 + 1871424 = 12744^2 + 1368^2 .

It is a tau number, because it is divible by the number of its divisors (160).

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50256 + ... + 53424.

Almost surely, 2164280960 is an apocalyptic number.

164280960 is a gapful number since it is divisible by the number (10) 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 164280960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293431050).

164280960 is an abundant number, since it is smaller than the sum of its proper divisors (422581140).

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

164280960 is an equidigital number, since it uses as much as digits as its factorization.

164280960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200 (or 3179 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 164280960 is about 12817.2134257022. The cubic root of 164280960 is about 547.6827687798.

The spelling of 164280960 in words is "one hundred sixty-four million, two hundred eighty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 144 160 162 180 192 216 240 270 288 320 324 360 384 405 432 480 540 576 640 648 720 810 864 960 1080 1152 1296 1440 1620 1728 1920 2160 2592 2880 3169 3240 3456 4320 5184 5760 6338 6480 8640 9507 10368 12676 12960 15845 17280 19014 25352 25920 28521 31690 38028 47535 50704 51840 57042 63380 76056 85563 95070 101408 114084 126760 142605 152112 171126 190140 202816 228168 253520 256689 285210 304224 342252 380280 405632 427815 456336 507040 513378 570420 608448 684504 760560 855630 912672 1014080 1026756 1140840 1216896 1283445 1369008 1521120 1711260 1825344 2028160 2053512 2281680 2566890 2738016 3042240 3422520 3650688 4107024 4563360 5133780 5476032 6084480 6845040 8214048 9126720 10267560 10952064 13690080 16428096 18253440 20535120 27380160 32856192 41070240 54760320 82140480 164280960