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164208160 = 2553073343
BaseRepresentation
bin10011100100110…
…01111000100000
3102102222122020201
421302121320200
5314014130120
624143314544
74032513664
oct1162317040
9372878221
10164208160
1184767026
1246baba54
1328034cbc
1417b468a4
15e63940a
hex9c99e20

164208160 has 48 divisors (see below), whose sum is σ = 389321856. Its totient is φ = 65449728.

The previous prime is 164208137. The next prime is 164208167. The reversal of 164208160 is 61802461.

It is not an unprimeable number, because it can be changed into a prime (164208167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47449 + ... + 50791.

It is an arithmetic number, because the mean of its divisors is an integer number (8110872).

Almost surely, 2164208160 is an apocalyptic number.

164208160 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 164208160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194660928).

164208160 is an abundant number, since it is smaller than the sum of its proper divisors (225113696).

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

164208160 is a wasteful number, since it uses less digits than its factorization.

164208160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665 (or 3657 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 164208160 is about 12814.3731801442. The cubic root of 164208160 is about 547.6018561843.

The spelling of 164208160 in words is "one hundred sixty-four million, two hundred eight thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 307 614 1228 1535 2456 3070 3343 4912 6140 6686 9824 12280 13372 16715 24560 26744 33430 49120 53488 66860 106976 133720 267440 534880 1026301 2052602 4105204 5131505 8210408 10263010 16420816 20526020 32841632 41052040 82104080 164208160