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164514720 = 2535893851
BaseRepresentation
bin10011100111001…
…00101110100000
3102110120012202210
421303210232200
5314103432340
624154042120
74035231516
oct1163445640
9373505683
10164514720
1184956387
1247119340
13281116b6
1417bc64b6
15e69a180
hex9ce4ba0

164514720 has 96 divisors (see below), whose sum is σ = 524180160. Its totient is φ = 43366400.

The previous prime is 164514719. The next prime is 164514731. The reversal of 164514720 is 27415461.

164514720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (30).

It is an unprimeable number.

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, 40795 + ... + 44645.

It is an arithmetic number, because the mean of its divisors is an integer number (5460210).

Almost surely, 2164514720 is an apocalyptic number.

164514720 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 164514720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262090080).

164514720 is an abundant number, since it is smaller than the sum of its proper divisors (359665440).

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

164514720 is a wasteful number, since it uses less digits than its factorization.

164514720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958 (or 3950 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 164514720 is about 12826.3291708891. The cubic root of 164514720 is about 547.9424167388.

The spelling of 164514720 in words is "one hundred sixty-four million, five hundred fourteen thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 89 96 120 160 178 240 267 356 445 480 534 712 890 1068 1335 1424 1780 2136 2670 2848 3560 3851 4272 5340 7120 7702 8544 10680 11553 14240 15404 19255 21360 23106 30808 38510 42720 46212 57765 61616 77020 92424 115530 123232 154040 184848 231060 308080 342739 369696 462120 616160 685478 924240 1028217 1370956 1713695 1848480 2056434 2741912 3427390 4112868 5141085 5483824 6854780 8225736 10282170 10967648 13709560 16451472 20564340 27419120 32902944 41128680 54838240 82257360 164514720