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164851129 = 629926171
BaseRepresentation
bin10011101001101…
…10110110111001
3102111012022020101
421310312312321
5314200214004
624205155401
74041132352
oct1164666671
9374168211
10164851129
1185066103
124725bb61
13281cb861
1417c72d29
15e714ba4
hex9d36db9

164851129 has 4 divisors (see below), whose sum is σ = 164883600. Its totient is φ = 164818660.

The previous prime is 164851073. The next prime is 164851151. The reversal of 164851129 is 921158461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 921158461 = 3413269897.

It is a cyclic number.

It is not a de Polignac number, because 164851129 - 223 = 156462521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164831129) by changing a digit.

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, 6787 + ... + 19384.

It is an arithmetic number, because the mean of its divisors is an integer number (41220900).

Almost surely, 2164851129 is an apocalyptic number.

It is an amenable number.

164851129 is a deficient number, since it is larger than the sum of its proper divisors (32471).

164851129 is an equidigital number, since it uses as much as digits as its factorization.

164851129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32470.

The product of its digits is 17280, while the sum is 37.

The square root of 164851129 is about 12839.4364751729. The cubic root of 164851129 is about 548.3156503281.

The spelling of 164851129 in words is "one hundred sixty-four million, eight hundred fifty-one thousand, one hundred twenty-nine".

Divisors: 1 6299 26171 164851129