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144799494 = 23719296257
BaseRepresentation
bin10001010000101…
…11011100000110
3101002110120120020
420220113130012
5244032040434
622211320010
73405526650
oct1050273406
9332416506
10144799494
1174810004
12405b0006
1323ccaa98
14153336d0
15caa3849
hex8a17706

144799494 has 64 divisors (see below), whose sum is σ = 360460800. Its totient is φ = 37836288.

The previous prime is 144799493. The next prime is 144799507. The reversal of 144799494 is 494997441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144799493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20014 + ... + 26270.

It is an arithmetic number, because the mean of its divisors is an integer number (5632200).

Almost surely, 2144799494 is an apocalyptic number.

144799494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144799494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180230400).

144799494 is an abundant number, since it is smaller than the sum of its proper divisors (215661306).

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

144799494 is a wasteful number, since it uses less digits than its factorization.

144799494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6317.

The product of its digits is 1306368, while the sum is 51.

The square root of 144799494 is about 12033.2661401633. The cubic root of 144799494 is about 525.1165201690.

The spelling of 144799494 in words is "one hundred forty-four million, seven hundred ninety-nine thousand, four hundred ninety-four".

Divisors: 1 2 3 6 7 14 19 21 29 38 42 57 58 87 114 133 174 203 266 399 406 551 609 798 1102 1218 1653 3306 3857 6257 7714 11571 12514 18771 23142 37542 43799 87598 118883 131397 181453 237766 262794 356649 362906 544359 713298 832181 1088718 1270171 1664362 2496543 2540342 3447607 3810513 4993086 6895214 7621026 10342821 20685642 24133249 48266498 72399747 144799494