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65218218058 = 272665492021
BaseRepresentation
bin111100101111010011…
…110000100001001010
320020100011120202012201
4330233103300201022
52032031330434213
645543312430414
74466111464300
oct745723604112
9206304522181
1065218218058
1125727a90574
121078154840a
1361c4881396
14322991a270
151a6a9116dd
hexf2f4f084a

65218218058 has 12 divisors (see below), whose sum is σ = 113799135762. Its totient is φ = 27950664840.

The previous prime is 65218218053. The next prime is 65218218089. The reversal of 65218218058 is 85081281256.

65218218058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 62446511449 + 2771706609 = 249893^2 + 52647^2 .

It is a super-3 number, since 3×652182180583 (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65218217999 and 65218218017.

It is not an unprimeable number, because it can be changed into a prime (65218218053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 332745913 + ... + 332746108.

Almost surely, 265218218058 is an apocalyptic number.

65218218058 is a deficient number, since it is larger than the sum of its proper divisors (48580917704).

65218218058 is a wasteful number, since it uses less digits than its factorization.

65218218058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665492037 (or 665492030 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 46.

The spelling of 65218218058 in words is "sixty-five billion, two hundred eighteen million, two hundred eighteen thousand, fifty-eight".

Divisors: 1 2 7 14 49 98 665492021 1330984042 4658444147 9316888294 32609109029 65218218058