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144308080 = 2457439587
BaseRepresentation
bin10001001100111…
…11011101110000
3101001112121110201
420212133131300
5243420324310
622153004544
73401412160
oct1046373560
9331477421
10144308080
1174504884
12403b3754
1323b881c7
14152465a0
15ca07e3a
hex899f770

144308080 has 80 divisors (see below), whose sum is σ = 384975360. Its totient is φ = 49280256.

The previous prime is 144308063. The next prime is 144308081. The reversal of 144308080 is 80803441.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144308081) 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, 245547 + ... + 246133.

It is an arithmetic number, because the mean of its divisors is an integer number (4812192).

Almost surely, 2144308080 is an apocalyptic number.

144308080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144308080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192487680).

144308080 is an abundant number, since it is smaller than the sum of its proper divisors (240667280).

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

144308080 is a wasteful number, since it uses less digits than its factorization.

144308080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 144308080 is about 12012.8298081676. The cubic root of 144308080 is about 524.5218079611.

The spelling of 144308080 in words is "one hundred forty-four million, three hundred eight thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 439 560 587 878 1174 1756 2195 2348 2935 3073 3512 4109 4390 4696 5870 6146 7024 8218 8780 9392 11740 12292 15365 16436 17560 20545 23480 24584 30730 32872 35120 41090 46960 49168 61460 65744 82180 122920 164360 245840 257693 328720 515386 1030772 1288465 1803851 2061544 2576930 3607702 4123088 5153860 7215404 9019255 10307720 14430808 18038510 20615440 28861616 36077020 72154040 144308080