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144412400 = 245211231427
BaseRepresentation
bin10001001101110…
…00111011110000
3101001201220120102
420212320323300
5243432144100
622155131532
73402325256
oct1046707360
9331656512
10144412400
11745761a0
1240443ba8
1323bc3832
14152725d6
15ca28cd5
hex89b8ef0

144412400 has 120 divisors (see below), whose sum is σ = 395224704. Its totient is φ = 50195200.

The previous prime is 144412393. The next prime is 144412421. The reversal of 144412400 is 4214441.

It is a happy number.

144412400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 100487 + ... + 101913.

Almost surely, 2144412400 is an apocalyptic number.

144412400 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 144412400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197612352).

144412400 is an abundant number, since it is smaller than the sum of its proper divisors (250812304).

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

144412400 is a wasteful number, since it uses less digits than its factorization.

144412400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 144412400 is about 12017.1710481294. The cubic root of 144412400 is about 524.6481694120.

Adding to 144412400 its reverse (4214441), we get a palindrome (148626841).

The spelling of 144412400 in words is "one hundred forty-four million, four hundred twelve thousand, four hundred".

Divisors: 1 2 4 5 8 10 11 16 20 22 23 25 40 44 46 50 55 80 88 92 100 110 115 176 184 200 220 230 253 275 368 400 440 460 506 550 575 880 920 1012 1100 1150 1265 1427 1840 2024 2200 2300 2530 2854 4048 4400 4600 5060 5708 6325 7135 9200 10120 11416 12650 14270 15697 20240 22832 25300 28540 31394 32821 35675 50600 57080 62788 65642 71350 78485 101200 114160 125576 131284 142700 156970 164105 251152 262568 285400 313940 328210 361031 392425 525136 570800 627880 656420 722062 784850 820525 1255760 1312840 1444124 1569700 1641050 1805155 2625680 2888248 3139400 3282100 3610310 5776496 6278800 6564200 7220620 9025775 13128400 14441240 18051550 28882480 36103100 72206200 144412400