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65142127 = 1911330341
BaseRepresentation
bin1111100001111…
…1110101101111
311112120120012101
43320133311233
5113134022002
610244115531
71420461511
oct370376557
9145516171
1065142127
1133853276
1219995ba7
131065a64b
148919bb1
155abb587
hex3e1fd6f

65142127 has 8 divisors (see below), whose sum is σ = 69179760. Its totient is φ = 61165440.

The previous prime is 65142101. The next prime is 65142131. The reversal of 65142127 is 72124156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-65142127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65142095 and 65142104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65142137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13024 + ... + 17317.

It is an arithmetic number, because the mean of its divisors is an integer number (8647470).

Almost surely, 265142127 is an apocalyptic number.

65142127 is a deficient number, since it is larger than the sum of its proper divisors (4037633).

65142127 is a wasteful number, since it uses less digits than its factorization.

65142127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30473.

The product of its digits is 3360, while the sum is 28.

The square root of 65142127 is about 8071.0672776282. The cubic root of 65142127 is about 402.3654156986.

It can be divided in two parts, 651 and 42127, that added together give a triangular number (42778 = T292).

The spelling of 65142127 in words is "sixty-five million, one hundred forty-two thousand, one hundred twenty-seven".

Divisors: 1 19 113 2147 30341 576479 3428533 65142127