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164152619 = 1231133349
BaseRepresentation
bin10011100100011…
…00010100101011
3102102212211001122
421302030110223
5314010340434
624142205455
74032163031
oct1162142453
9372784048
10164152619
1184729324
1246b8388b
1328015937
1417b30551
15e627c2e
hex9c8c52b

164152619 has 4 divisors (see below), whose sum is σ = 164287200. Its totient is φ = 164018040.

The previous prime is 164152589. The next prime is 164152661. The reversal of 164152619 is 916251461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 916251461 = 3724763553.

It is a cyclic number.

It is not a de Polignac number, because 164152619 - 220 = 163104043 is a prime.

It is a super-2 number, since 2×1641526192 = 53892164649118322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164152019) 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 3 ways as a sum of consecutive naturals, for example, 65444 + ... + 67905.

It is an arithmetic number, because the mean of its divisors is an integer number (41071800).

Almost surely, 2164152619 is an apocalyptic number.

164152619 is a deficient number, since it is larger than the sum of its proper divisors (134581).

164152619 is a wasteful number, since it uses less digits than its factorization.

164152619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134580.

The product of its digits is 12960, while the sum is 35.

The square root of 164152619 is about 12812.2058600383. The cubic root of 164152619 is about 547.5401097920.

The spelling of 164152619 in words is "one hundred sixty-four million, one hundred fifty-two thousand, six hundred nineteen".

Divisors: 1 1231 133349 164152619