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143423524 = 22281127601
BaseRepresentation
bin10001000110001…
…11100000100100
3100222212200002101
420203013200210
5243204023044
622122021444
73361036246
oct1043074044
9328780071
10143423524
1173a60242
1240047884
13239386ba
1415096096
15c8d0cd4
hex88c7824

143423524 has 12 divisors (see below), whose sum is σ = 251886348. Its totient is φ = 71456000.

The previous prime is 143423503. The next prime is 143423569. The reversal of 143423524 is 425324341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 89870400 + 53553124 = 9480^2 + 7318^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143423492 and 143423501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62677 + ... + 64924.

It is an arithmetic number, because the mean of its divisors is an integer number (20990529).

Almost surely, 2143423524 is an apocalyptic number.

It is an amenable number.

143423524 is a deficient number, since it is larger than the sum of its proper divisors (108462824).

143423524 is a wasteful number, since it uses less digits than its factorization.

143423524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127886 (or 127884 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 143423524 is about 11975.9560787438. The cubic root of 143423524 is about 523.4479014949.

Adding to 143423524 its reverse (425324341), we get a palindrome (568747865).

The spelling of 143423524 in words is "one hundred forty-three million, four hundred twenty-three thousand, five hundred twenty-four".

Divisors: 1 2 4 281 562 1124 127601 255202 510404 35855881 71711762 143423524