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143342341 = 571725073
BaseRepresentation
bin10001000101100…
…11101100000101
3100222201112201121
420202303230011
5243143423331
622120153541
73360250462
oct1042635405
9328645647
10143342341
1173a0524a
12400088b1
132390a76c
1415074669
15c8b6c11
hex88b3b05

143342341 has 4 divisors (see below), whose sum is σ = 143373132. Its totient is φ = 143311552.

The previous prime is 143342281. The next prime is 143342347. The reversal of 143342341 is 143243341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143243341 = 238160161.

It can be written as a sum of positive squares in 2 ways, for example, as 70308225 + 73034116 = 8385^2 + 8546^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-143342341 is a prime.

It is a super-3 number, since 3×1433423413 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143342347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6820 + ... + 18253.

It is an arithmetic number, because the mean of its divisors is an integer number (35843283).

Almost surely, 2143342341 is an apocalyptic number.

It is an amenable number.

143342341 is a deficient number, since it is larger than the sum of its proper divisors (30791).

143342341 is an equidigital number, since it uses as much as digits as its factorization.

143342341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30790.

The product of its digits is 3456, while the sum is 25.

The square root of 143342341 is about 11972.5661827363. The cubic root of 143342341 is about 523.3491192537.

Adding to 143342341 its reverse (143243341), we get a palindrome (286585682).

The spelling of 143342341 in words is "one hundred forty-three million, three hundred forty-two thousand, three hundred forty-one".

Divisors: 1 5717 25073 143342341