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164342380 = 2259478677
BaseRepresentation
bin10011100101110…
…10101001101100
3102110020110100211
421302322221230
5314032424010
624150232204
74033613206
oct1162725154
9373213324
10164342380
1184848954
1247055664
1328081117
1417b7d776
15e66408a
hex9cbaa6c

164342380 has 24 divisors (see below), whose sum is σ = 345523248. Its totient is φ = 65659968.

The previous prime is 164342369. The next prime is 164342393. The reversal of 164342380 is 83243461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14602 + ... + 23278.

It is an arithmetic number, because the mean of its divisors is an integer number (14396802).

Almost surely, 2164342380 is an apocalyptic number.

164342380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164342380 is an abundant number, since it is smaller than the sum of its proper divisors (181180868).

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

164342380 is a wasteful number, since it uses less digits than its factorization.

164342380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9633 (or 9631 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 164342380 is about 12819.6091984116. The cubic root of 164342380 is about 547.7510146360.

The spelling of 164342380 in words is "one hundred sixty-four million, three hundred forty-two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 947 1894 3788 4735 8677 9470 17354 18940 34708 43385 86770 173540 8217119 16434238 32868476 41085595 82171190 164342380