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164077144 = 23711266359
BaseRepresentation
bin10011100011110…
…01111001011000
3102102201222112021
421301321321120
5314000432034
624140424224
74031430010
oct1161717130
9372658467
10164077144
1184687650
1246b48074
1327cba48a
1417b10c40
15e6106b4
hex9c79e58

164077144 has 32 divisors (see below), whose sum is σ = 383558400. Its totient is φ = 63925920.

The previous prime is 164077097. The next prime is 164077159. The reversal of 164077144 is 441770461.

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, 132564 + ... + 133795.

It is an arithmetic number, because the mean of its divisors is an integer number (11986200).

Almost surely, 2164077144 is an apocalyptic number.

164077144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

164077144 is an abundant number, since it is smaller than the sum of its proper divisors (219481256).

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

164077144 is a wasteful number, since it uses less digits than its factorization.

164077144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266383 (or 266379 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 164077144 is about 12809.2600879208. The cubic root of 164077144 is about 547.4561799197.

The spelling of 164077144 in words is "one hundred sixty-four million, seventy-seven thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 266359 532718 1065436 1864513 2130872 2929949 3729026 5859898 7458052 11719796 14916104 20509643 23439592 41019286 82038572 164077144