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164036380 = 2258201819
BaseRepresentation
bin10011100011011…
…11111100011100
3102102122220121111
421301233330130
5313443131010
624135511404
74031200114
oct1161577434
9372586544
10164036380
1184659a62
1246b28564
1327ca4a61
1417b00044
15e60358a
hex9c6ff1c

164036380 has 12 divisors (see below), whose sum is σ = 344476440. Its totient is φ = 65614544.

The previous prime is 164036377. The next prime is 164036393. The reversal of 164036380 is 83630461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4100890 + ... + 4100929.

It is an arithmetic number, because the mean of its divisors is an integer number (28706370).

Almost surely, 2164036380 is an apocalyptic number.

164036380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164036380 is an abundant number, since it is smaller than the sum of its proper divisors (180440060).

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

164036380 is a wasteful number, since it uses less digits than its factorization.

164036380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8201828 (or 8201826 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 164036380 is about 12807.6687964672. The cubic root of 164036380 is about 547.4108387435.

The spelling of 164036380 in words is "one hundred sixty-four million, thirty-six thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 8201819 16403638 32807276 41009095 82018190 164036380