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164005371 = 3341148153
BaseRepresentation
bin10011100011010…
…00010111111011
3102102121100002000
421301220113323
5313441132441
624135112043
74031010525
oct1161502773
9372540060
10164005371
1184638732
1246b12623
1327c938ca
1417ad2a15
15e5e92b6
hex9c685fb

164005371 has 16 divisors (see below), whose sum is σ = 248898720. Its totient is φ = 106669440.

The previous prime is 164005363. The next prime is 164005381. The reversal of 164005371 is 173500461.

It is not a de Polignac number, because 164005371 - 23 = 164005363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (164005351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72970 + ... + 75183.

It is an arithmetic number, because the mean of its divisors is an integer number (15556170).

Almost surely, 2164005371 is an apocalyptic number.

164005371 is a deficient number, since it is larger than the sum of its proper divisors (84893349).

164005371 is a wasteful number, since it uses less digits than its factorization.

164005371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148203 (or 148197 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 164005371 is about 12806.4581754676. The cubic root of 164005371 is about 547.3763428745.

The spelling of 164005371 in words is "one hundred sixty-four million, five thousand, three hundred seventy-one".

Divisors: 1 3 9 27 41 123 369 1107 148153 444459 1333377 4000131 6074273 18222819 54668457 164005371