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143102400 = 2635274259
BaseRepresentation
bin10001000011110…
…01000111000000
3100222021100120220
420201321013000
5243113234100
622111103040
73355231110
oct1041710700
9328240526
10143102400
1173860a51
123bb11a80
132385549c
1415011040
15c86aaa0
hex88791c0

143102400 has 168 divisors, whose sum is σ = 536691840. Its totient is φ = 32701440.

The previous prime is 143102387. The next prime is 143102429. The reversal of 143102400 is 4201341.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 143102400.

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, 31471 + ... + 35729.

Almost surely, 2143102400 is an apocalyptic number.

143102400 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 143102400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268345920).

143102400 is an abundant number, since it is smaller than the sum of its proper divisors (393589440).

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

143102400 is a wasteful number, since it uses less digits than its factorization.

143102400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291 (or 4276 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 143102400 is about 11962.5415359780. The cubic root of 143102400 is about 523.0569444947.

Adding to 143102400 its reverse (4201341), we get a palindrome (147303741).

The spelling of 143102400 in words is "one hundred forty-three million, one hundred two thousand, four hundred".