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143102113440 = 253511139721493
BaseRepresentation
bin1000010101000110001…
…1001111011010100000
3111200101000212120101120
42011101203033122200
54321033120112230
6145423514532240
713224126615546
oct2052143173240
9450330776346
10143102113440
1155764459960
1223898737080
1310657479c90
146cd7615d96
153ac8236310
hex21518cf6a0

143102113440 has 384 divisors, whose sum is σ = 535062350592. Its totient is φ = 31691243520.

The previous prime is 143102113397. The next prime is 143102113499. The reversal of 143102113440 is 44311201341.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 143102113440.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6647334 + ... + 6668826.

It is an arithmetic number, because the mean of its divisors is an integer number (1393391538).

Almost surely, 2143102113440 is an apocalyptic number.

143102113440 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 143102113440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267531175296).

143102113440 is an abundant number, since it is smaller than the sum of its proper divisors (391960237152).

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

143102113440 is a wasteful number, since it uses less digits than its factorization.

143102113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21632 (or 21624 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 143102113440 its reverse (44311201341), we get a palindrome (187413314781).

The spelling of 143102113440 in words is "one hundred forty-three billion, one hundred two million, one hundred thirteen thousand, four hundred forty".