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64536141 = 3193136523
BaseRepresentation
bin1111011000101…
…1111001001101
311111102202221110
43312023321031
5113010124031
610223122233
71412356005
oct366137115
9144382843
1064536141
1133479a5a
1219743379
13104a7887
1487dd005
1559ebc46
hex3d8be4d

64536141 has 16 divisors (see below), whose sum is σ = 93501440. Its totient is φ = 39443760.

The previous prime is 64536119. The next prime is 64536167. The reversal of 64536141 is 14163546.

It is not a de Polignac number, because 64536141 - 27 = 64536013 is a prime.

It is a super-3 number, since 3×645361413 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64536099 and 64536108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64536191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16495 + ... + 20028.

It is an arithmetic number, because the mean of its divisors is an integer number (5843840).

Almost surely, 264536141 is an apocalyptic number.

It is an amenable number.

64536141 is a deficient number, since it is larger than the sum of its proper divisors (28965299).

64536141 is a wasteful number, since it uses less digits than its factorization.

64536141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36576.

The product of its digits is 8640, while the sum is 30.

The square root of 64536141 is about 8033.4389273835. The cubic root of 64536141 is about 401.1138558505.

Adding to 64536141 its reverse (14163546), we get a palindrome (78699687).

The spelling of 64536141 in words is "sixty-four million, five hundred thirty-six thousand, one hundred forty-one".

Divisors: 1 3 19 31 57 93 589 1767 36523 109569 693937 1132213 2081811 3396639 21512047 64536141