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164220013 = 2514331511
BaseRepresentation
bin10011100100111…
…00110001101101
3102110000020111201
421302130301231
5314020020023
624143445501
74032563356
oct1162346155
9373006451
10164220013
1184774a21
1246bb6891
132803a509
1417b4ad2d
15e63cbad
hex9c9cc6d

164220013 has 8 divisors (see below), whose sum is σ = 165364416. Its totient is φ = 163080000.

The previous prime is 164219999. The next prime is 164220019. The reversal of 164220013 is 310022461.

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

It is a cyclic number.

It is not a de Polignac number, because 164220013 - 221 = 162122861 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 (164220019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107928 + ... + 109438.

It is an arithmetic number, because the mean of its divisors is an integer number (20670552).

Almost surely, 2164220013 is an apocalyptic number.

It is an amenable number.

164220013 is a deficient number, since it is larger than the sum of its proper divisors (1144403).

164220013 is a wasteful number, since it uses less digits than its factorization.

164220013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 164220013 is about 12814.8356602806. The cubic root of 164220013 is about 547.6150316737.

Adding to 164220013 its reverse (310022461), we get a palindrome (474242474).

The spelling of 164220013 in words is "one hundred sixty-four million, two hundred twenty thousand, thirteen".

Divisors: 1 251 433 1511 108683 379261 654263 164220013