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164255488 = 28641623
BaseRepresentation
bin10011100101001…
…01011100000000
3102110002001011121
421302211130000
5314022133423
624144322024
74033101655
oct1162453400
9373061147
10164255488
1184799641
1247013314
13280506c7
1417b59c2c
15e64845d
hex9ca5700

164255488 has 18 divisors (see below), whose sum is σ = 327869864. Its totient is φ = 82127616.

The previous prime is 164255477. The next prime is 164255491. The reversal of 164255488 is 884552461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320556 + ... + 321067.

Almost surely, 2164255488 is an apocalyptic number.

It is an amenable number.

164255488 is a deficient number, since it is larger than the sum of its proper divisors (163614376).

164255488 is an frugal number, since it uses more digits than its factorization.

164255488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641639 (or 641625 counting only the distinct ones).

The product of its digits is 307200, while the sum is 43.

The square root of 164255488 is about 12816.2197234598. The cubic root of 164255488 is about 547.6544609820.

The spelling of 164255488 in words is "one hundred sixty-four million, two hundred fifty-five thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 32 64 128 256 641623 1283246 2566492 5132984 10265968 20531936 41063872 82127744 164255488