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164241444 = 22313686787
BaseRepresentation
bin10011100101000…
…10000000100100
3102110001022220110
421302202000210
5314021211234
624144133020
74033013013
oct1162420044
9373038813
10164241444
118478a034
1247007170
13280471b3
1417b54a7a
15e6441e9
hex9ca2024

164241444 has 12 divisors (see below), whose sum is σ = 383230064. Its totient is φ = 54747144.

The previous prime is 164241439. The next prime is 164241481. The reversal of 164241444 is 444142461.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6843382 + ... + 6843405.

Almost surely, 2164241444 is an apocalyptic number.

It is an amenable number.

164241444 is an abundant number, since it is smaller than the sum of its proper divisors (218988620).

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

164241444 is a wasteful number, since it uses less digits than its factorization.

164241444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13686794 (or 13686792 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 164241444 is about 12815.6718122773. The cubic root of 164241444 is about 547.6388522119.

The spelling of 164241444 in words is "one hundred sixty-four million, two hundred forty-one thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 13686787 27373574 41060361 54747148 82120722 164241444