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144292400 = 24527291777
BaseRepresentation
bin10001001100110…
…11101000110000
3101001111210221222
420212123220300
5243414324100
622152404212
73401315360
oct1046335060
9331453858
10144292400
11744a401a
12403a6668
1323b81025
14152409a0
15ca03485
hex899ba30

144292400 has 120 divisors (see below), whose sum is σ = 410077920. Its totient is φ = 47738880.

The previous prime is 144292399. The next prime is 144292417. The reversal of 144292400 is 4292441.

It is a self number, because there is not a number n which added to its sum of digits gives 144292400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80312 + ... + 82088.

It is an arithmetic number, because the mean of its divisors is an integer number (3417316).

Almost surely, 2144292400 is an apocalyptic number.

144292400 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 144292400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205038960).

144292400 is an abundant number, since it is smaller than the sum of its proper divisors (265785520).

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

144292400 is a wasteful number, since it uses less digits than its factorization.

144292400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831 (or 1820 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 144292400 is about 12012.1771548708. The cubic root of 144292400 is about 524.5028097182.

The spelling of 144292400 in words is "one hundred forty-four million, two hundred ninety-two thousand, four hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 29 35 40 50 56 58 70 80 100 112 116 140 145 175 200 203 232 280 290 350 400 406 464 560 580 700 725 812 1015 1160 1400 1450 1624 1777 2030 2320 2800 2900 3248 3554 4060 5075 5800 7108 8120 8885 10150 11600 12439 14216 16240 17770 20300 24878 28432 35540 40600 44425 49756 51533 62195 71080 81200 88850 99512 103066 124390 142160 177700 199024 206132 248780 257665 310975 355400 360731 412264 497560 515330 621950 710800 721462 824528 995120 1030660 1243900 1288325 1442924 1803655 2061320 2487800 2576650 2885848 3607310 4122640 4975600 5153300 5771696 7214620 9018275 10306600 14429240 18036550 20613200 28858480 36073100 72146200 144292400