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164810240 = 295717541
BaseRepresentation
bin10011101001011…
…00111000000000
3102111010020010222
421310230320000
5314142411430
624204242212
74040602220
oct1164547000
9374106128
10164810240
1185038411
1247240368
13281b606a
1417c62080
15e7079e5
hex9d2ce00

164810240 has 160 divisors (see below), whose sum is σ = 479058624. Its totient is φ = 53084160.

The previous prime is 164810221. The next prime is 164810273. The reversal of 164810240 is 42018461.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304370 + ... + 304910.

Almost surely, 2164810240 is an apocalyptic number.

164810240 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 164810240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239529312).

164810240 is an abundant number, since it is smaller than the sum of its proper divisors (314248384).

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

164810240 is an equidigital number, since it uses as much as digits as its factorization.

164810240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 164810240 is about 12837.8440557595. The cubic root of 164810240 is about 548.2703125888.

The spelling of 164810240 in words is "one hundred sixty-four million, eight hundred ten thousand, two hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 17 20 28 32 34 35 40 56 64 68 70 80 85 112 119 128 136 140 160 170 224 238 256 272 280 320 340 448 476 512 541 544 560 595 640 680 896 952 1082 1088 1120 1190 1280 1360 1792 1904 2164 2176 2240 2380 2560 2705 2720 3584 3787 3808 4328 4352 4480 4760 5410 5440 7574 7616 8656 8704 8960 9197 9520 10820 10880 15148 15232 17312 17920 18394 18935 19040 21640 21760 30296 30464 34624 36788 37870 38080 43280 43520 45985 60592 60928 64379 69248 73576 75740 76160 86560 91970 121184 128758 138496 147152 151480 152320 173120 183940 242368 257516 276992 294304 302960 304640 321895 346240 367880 484736 515032 588608 605920 643790 692480 735760 969472 1030064 1177216 1211840 1287580 1384960 1471520 1938944 2060128 2354432 2423680 2575160 2943040 4120256 4708864 4847360 5150320 5886080 8240512 9694720 10300640 11772160 16481024 20601280 23544320 32962048 41202560 82405120 164810240