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164197660 = 22511746353
BaseRepresentation
bin10011100100101…
…11010100011100
3102102222002211211
421302113110130
5314013311120
624143154204
74032441244
oct1162272434
9372862754
10164197660
118475a150
1246ba5964
13280302a3
1417b42b24
15e63625a
hex9c9751c

164197660 has 24 divisors (see below), whose sum is σ = 376162416. Its totient is φ = 59708160.

The previous prime is 164197633. The next prime is 164197673. The reversal of 164197660 is 66791461.

164197660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372957 + ... + 373396.

It is an arithmetic number, because the mean of its divisors is an integer number (15673434).

Almost surely, 2164197660 is an apocalyptic number.

164197660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164197660 is an abundant number, since it is smaller than the sum of its proper divisors (211964756).

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

164197660 is a wasteful number, since it uses less digits than its factorization.

164197660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746373 (or 746371 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 164197660 is about 12813.9634773945. The cubic root of 164197660 is about 547.5901841252.

The spelling of 164197660 in words is "one hundred sixty-four million, one hundred ninety-seven thousand, six hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 746353 1492706 2985412 3731765 7463530 8209883 14927060 16419766 32839532 41049415 82098830 164197660