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164053720 = 235109191197
BaseRepresentation
bin10011100011101…
…00001011011000
3102102200210101201
421301310023120
5313444204340
624140123544
74031301505
oct1161641330
9372623351
10164053720
1184670a96
1246b365b4
1327cac90c
1417b064ac
15e60879a
hex9c742d8

164053720 has 64 divisors (see below), whose sum is σ = 376358400. Its totient is φ = 64350720.

The previous prime is 164053717. The next prime is 164053727. The reversal of 164053720 is 27350461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164053727) by changing a digit.

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, 832662 + ... + 832858.

It is an arithmetic number, because the mean of its divisors is an integer number (5880600).

Almost surely, 2164053720 is an apocalyptic number.

164053720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164053720 is an abundant number, since it is smaller than the sum of its proper divisors (212304680).

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

164053720 is a wasteful number, since it uses less digits than its factorization.

164053720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 164053720 is about 12808.3457167583. The cubic root of 164053720 is about 547.4301266793.

The spelling of 164053720 in words is "one hundred sixty-four million, fifty-three thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 109 191 197 218 382 394 436 545 764 788 872 955 985 1090 1528 1576 1910 1970 2180 3820 3940 4360 7640 7880 20819 21473 37627 41638 42946 75254 83276 85892 104095 107365 150508 166552 171784 188135 208190 214730 301016 376270 416380 429460 752540 832760 858920 1505080 4101343 8202686 16405372 20506715 32810744 41013430 82026860 164053720