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164405022 = 23199713721
BaseRepresentation
bin10011100110010…
…01111100011110
3102110100122021220
421303021330132
5314041430042
624151434210
74034263635
oct1163117436
9373318256
10164405022
1184890a21
1247085966
13280a37a2
1417b9851c
15e6778ec
hex9cc9f1e

164405022 has 16 divisors (see below), whose sum is σ = 328998672. Its totient is φ = 54770240.

The previous prime is 164404991. The next prime is 164405029. The reversal of 164405022 is 220504461.

164405022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1644050223 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 164404983 and 164405001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164405029) 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, 5122 + ... + 18842.

It is an arithmetic number, because the mean of its divisors is an integer number (20562417).

Almost surely, 2164405022 is an apocalyptic number.

164405022 is an abundant number, since it is smaller than the sum of its proper divisors (164593650).

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

164405022 is a wasteful number, since it uses less digits than its factorization.

164405022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15723.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 164405022 is about 12822.0521758414. The cubic root of 164405022 is about 547.8206007858.

Adding to 164405022 its reverse (220504461), we get a palindrome (384909483).

The spelling of 164405022 in words is "one hundred sixty-four million, four hundred five thousand, twenty-two".

Divisors: 1 2 3 6 1997 3994 5991 11982 13721 27442 41163 82326 27400837 54801674 82202511 164405022