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65242052877 = 352357172823
BaseRepresentation
bin111100110000101110…
…101011100100001101
320020101211102200102210
4330300232223210031
52032103431143002
645545523341033
74466521204461
oct746056534415
9206354380383
1065242052877
112573a48aa71
1210789521779
1361c97a8121
14322cb624a1
151a6ca6d96c
hexf30bab90d

65242052877 has 16 divisors (see below), whose sum is σ = 87309567488. Its totient is φ = 43334915760.

The previous prime is 65242052857. The next prime is 65242052891. The reversal of 65242052877 is 77825024256.

It is not a de Polignac number, because 65242052877 - 27 = 65242052749 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65242052857) 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 15 ways as a sum of consecutive naturals, for example, 859488 + ... + 932310.

It is an arithmetic number, because the mean of its divisors is an integer number (5456847968).

Almost surely, 265242052877 is an apocalyptic number.

It is an amenable number.

65242052877 is a deficient number, since it is larger than the sum of its proper divisors (22067514611).

65242052877 is a wasteful number, since it uses less digits than its factorization.

65242052877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73920.

The product of its (nonzero) digits is 1881600, while the sum is 48.

The spelling of 65242052877 in words is "sixty-five billion, two hundred forty-two million, fifty-two thousand, eight hundred seventy-seven".

Divisors: 1 3 523 571 1569 1713 72823 218469 298633 895899 38086429 41581933 114259287 124745799 21747350959 65242052877