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143145325 = 529759029
BaseRepresentation
bin10001000100000…
…11100101101101
3100222100112110201
420202003211231
5243121122300
622112033501
73355500211
oct1042034555
9328315421
10143145325
1173890224
123bb32891
132386bb9b
1415022941
15c87866a
hex888396d

143145325 has 12 divisors (see below), whose sum is σ = 179333140. Its totient is φ = 113333760.

The previous prime is 143145319. The next prime is 143145329. The reversal of 143145325 is 523541341.

It can be written as a sum of positive squares in 6 ways, for example, as 18130564 + 125014761 = 4258^2 + 11181^2 .

It is not a de Polignac number, because 143145325 - 25 = 143145293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143145293 and 143145302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143145329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27090 + ... + 31939.

Almost surely, 2143145325 is an apocalyptic number.

It is an amenable number.

143145325 is a deficient number, since it is larger than the sum of its proper divisors (36187815).

143145325 is an equidigital number, since it uses as much as digits as its factorization.

143145325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59136 (or 59131 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 143145325 is about 11964.3355436063. The cubic root of 143145325 is about 523.1092379917.

Adding to 143145325 its reverse (523541341), we get a palindrome (666686666).

The spelling of 143145325 in words is "one hundred forty-three million, one hundred forty-five thousand, three hundred twenty-five".

Divisors: 1 5 25 97 485 2425 59029 295145 1475725 5725813 28629065 143145325