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144421350 = 23523372857
BaseRepresentation
bin10001001101110…
…11000111100110
3101001202100211220
420212323013212
5243432440400
622155241210
73402363333
oct1046730746
9331670756
10144421350
1174581997
1240449206
1323bc7928
141527598a
15ca2b7a0
hex89bb1e6

144421350 has 48 divisors (see below), whose sum is σ = 359353488. Its totient is φ = 38384640.

The previous prime is 144421349. The next prime is 144421357. The reversal of 144421350 is 53124441.

It is a super-3 number, since 3×1444213503 (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144421350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144421357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49122 + ... + 51978.

It is an arithmetic number, because the mean of its divisors is an integer number (7486531).

Almost surely, 2144421350 is an apocalyptic number.

144421350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144421350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179676744).

144421350 is an abundant number, since it is smaller than the sum of its proper divisors (214932138).

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

144421350 is a wasteful number, since it uses less digits than its factorization.

144421350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209 (or 3204 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 144421350 is about 12017.5434261749. The cubic root of 144421350 is about 524.6590075951.

Adding to 144421350 its reverse (53124441), we get a palindrome (197545791).

The spelling of 144421350 in words is "one hundred forty-four million, four hundred twenty-one thousand, three hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 337 674 1011 1685 2022 2857 3370 5055 5714 8425 8571 10110 14285 16850 17142 25275 28570 42855 50550 71425 85710 142850 214275 428550 962809 1925618 2888427 4814045 5776854 9628090 14442135 24070225 28884270 48140450 72210675 144421350