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164449241 = 1123976701
BaseRepresentation
bin10011100110101…
…00101111011001
3102110102212221122
421303110233121
5314044333431
624152415025
74034536565
oct1163245731
9373385848
10164449241
1184911170
12470a7475
13280ba958
1417baa6a5
15e685a7b
hex9cd4bd9

164449241 has 16 divisors (see below), whose sum is σ = 189157248. Its totient is φ = 141504000.

The previous prime is 164449231. The next prime is 164449249. The reversal of 164449241 is 142944461.

It is not a de Polignac number, because 164449241 - 218 = 164187097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164449249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21191 + ... + 27891.

It is an arithmetic number, because the mean of its divisors is an integer number (11822328).

Almost surely, 2164449241 is an apocalyptic number.

164449241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

164449241 is a deficient number, since it is larger than the sum of its proper divisors (24708007).

164449241 is a wasteful number, since it uses less digits than its factorization.

164449241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6832.

The product of its digits is 27648, while the sum is 35.

The square root of 164449241 is about 12823.7763938709. The cubic root of 164449241 is about 547.8697110206.

The spelling of 164449241 in words is "one hundred sixty-four million, four hundred forty-nine thousand, two hundred forty-one".

Divisors: 1 11 23 97 253 1067 2231 6701 24541 73711 154123 649997 1695353 7149967 14949931 164449241