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164125213 = 738236133
BaseRepresentation
bin10011100100001…
…01101000011101
3102102211102110121
421302011220131
5314004001323
624141434541
74032020110
oct1162055035
9372742417
10164125213
118470a77a
1246b6ba51
1328006315
1417b24577
15e61ea5d
hex9c85a1d

164125213 has 8 divisors (see below), whose sum is σ = 187651328. Its totient is φ = 140619024.

The previous prime is 164125201. The next prime is 164125219. The reversal of 164125213 is 312521461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164125213 - 217 = 163994141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164125219) 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 7 ways as a sum of consecutive naturals, for example, 23695 + ... + 29827.

It is an arithmetic number, because the mean of its divisors is an integer number (23456416).

Almost surely, 2164125213 is an apocalyptic number.

It is an amenable number.

164125213 is a deficient number, since it is larger than the sum of its proper divisors (23526115).

164125213 is an equidigital number, since it uses as much as digits as its factorization.

164125213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9963.

The product of its digits is 1440, while the sum is 25.

The square root of 164125213 is about 12811.1362884016. The cubic root of 164125213 is about 547.5096366881.

Adding to 164125213 its reverse (312521461), we get a palindrome (476646674).

The spelling of 164125213 in words is "one hundred sixty-four million, one hundred twenty-five thousand, two hundred thirteen".

Divisors: 1 7 3823 6133 26761 42931 23446459 164125213