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65189641 = 1114274153
BaseRepresentation
bin1111100010101…
…1011100001001
311112122222101011
43320223130021
5113142032031
610245123521
71421050156
oct370533411
9145588334
1065189641
1133885a40
12199b95a1
131067616a
14892d22d
155aca6b1
hex3e2b709

65189641 has 8 divisors (see below), whose sum is σ = 71182944. Its totient is φ = 59207520.

The previous prime is 65189623. The next prime is 65189647. The reversal of 65189641 is 14698156.

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

It is a cyclic number.

It is not a de Polignac number, because 65189641 - 211 = 65187593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65189594 and 65189603.

It is not an unprimeable number, because it can be changed into a prime (65189647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13621 + ... + 17773.

It is an arithmetic number, because the mean of its divisors is an integer number (8897868).

Almost surely, 265189641 is an apocalyptic number.

It is an amenable number.

65189641 is a deficient number, since it is larger than the sum of its proper divisors (5993303).

65189641 is a wasteful number, since it uses less digits than its factorization.

65189641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5591.

The product of its digits is 51840, while the sum is 40.

The square root of 65189641 is about 8074.0102179772. The cubic root of 65189641 is about 402.4632189941.

The spelling of 65189641 in words is "sixty-five million, one hundred eighty-nine thousand, six hundred forty-one".

Divisors: 1 11 1427 4153 15697 45683 5926331 65189641