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164442148 = 221343251293
BaseRepresentation
bin10011100110100…
…11000000100100
3102110102112012221
421303103000210
5314044122043
624152322124
74034510113
oct1163230044
9373375187
10164442148
1184906902
12470a3344
13280b7660
1417ba7c7a
15e6838ed
hex9cd3024

164442148 has 48 divisors (see below), whose sum is σ = 319467456. Its totient is φ = 73584000.

The previous prime is 164442127. The next prime is 164442149. The reversal of 164442148 is 841244461.

It is not an unprimeable number, because it can be changed into a prime (164442149) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 561090 + ... + 561382.

It is an arithmetic number, because the mean of its divisors is an integer number (6655572).

Almost surely, 2164442148 is an apocalyptic number.

It is an amenable number.

164442148 is a deficient number, since it is larger than the sum of its proper divisors (155025308).

164442148 is a wasteful number, since it uses less digits than its factorization.

164442148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 602 counting only the distinct ones).

The product of its digits is 24576, while the sum is 34.

The square root of 164442148 is about 12823.4998342886. The cubic root of 164442148 is about 547.8618340292.

The spelling of 164442148 in words is "one hundred sixty-four million, four hundred forty-two thousand, one hundred forty-eight".

Divisors: 1 2 4 13 26 43 52 86 172 251 293 502 559 586 1004 1118 1172 2236 3263 3809 6526 7618 10793 12599 13052 15236 21586 25198 43172 50396 73543 140309 147086 163787 280618 294172 327574 561236 655148 956059 1912118 3162349 3824236 6324698 12649396 41110537 82221074 164442148