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132443143 = 718920449
BaseRepresentation
bin1111110010011…
…10110000000111
3100020012210211121
413321032300013
5232401140033
621050414411
73165514420
oct771166007
9306183747
10132443143
1168840548
1238431407
1321592831
1413838647
15b96262d
hex7e4ec07

132443143 has 4 divisors (see below), whose sum is σ = 151363600. Its totient is φ = 113522688.

The previous prime is 132443123. The next prime is 132443147. The reversal of 132443143 is 341344231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-132443143 is a prime.

It is a super-2 number, since 2×1324431432 = 35082372255436898, which contains 22 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 (132443147) 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, 9460218 + ... + 9460231.

It is an arithmetic number, because the mean of its divisors is an integer number (37840900).

Almost surely, 2132443143 is an apocalyptic number.

132443143 is a deficient number, since it is larger than the sum of its proper divisors (18920457).

132443143 is an equidigital number, since it uses as much as digits as its factorization.

132443143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18920456.

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

The square root of 132443143 is about 11508.3944579598. The cubic root of 132443143 is about 509.7334798648.

Adding to 132443143 its reverse (341344231), we get a palindrome (473787374).

The spelling of 132443143 in words is "one hundred thirty-two million, four hundred forty-three thousand, one hundred forty-three".

Divisors: 1 7 18920449 132443143