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65132143 = 431514701
BaseRepresentation
bin1111100001110…
…1011001101111
311112120001111121
43320131121233
5113133212033
610244001411
71420420426
oct370353157
9145501447
1065132143
113384681a
1219990267
1310655c3b
1489162bd
155ab862d
hex3e1d66f

65132143 has 4 divisors (see below), whose sum is σ = 66646888. Its totient is φ = 63617400.

The previous prime is 65132131. The next prime is 65132233. The reversal of 65132143 is 34123156.

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

It is a cyclic number.

It is not a de Polignac number, because 65132143 - 29 = 65131631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65132443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757308 + ... + 757393.

It is an arithmetic number, because the mean of its divisors is an integer number (16661722).

Almost surely, 265132143 is an apocalyptic number.

65132143 is a deficient number, since it is larger than the sum of its proper divisors (1514745).

65132143 is a wasteful number, since it uses less digits than its factorization.

65132143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514744.

The product of its digits is 2160, while the sum is 25.

The square root of 65132143 is about 8070.4487483659. The cubic root of 65132143 is about 402.3448584865.

Adding to 65132143 its reverse (34123156), we get a palindrome (99255299).

The spelling of 65132143 in words is "sixty-five million, one hundred thirty-two thousand, one hundred forty-three".

Divisors: 1 43 1514701 65132143