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64500035141 = 3712771365109
BaseRepresentation
bin111100000100100000…
…000110111001000101
320011111010012021110102
4330010200012321011
52024044002111031
645344135333445
74442241152453
oct740440067105
9204433167412
1064500035141
1125399652073
1210600b21285
13610bb46989
14319c3ab9d3
151a2784b7cb
hexf04806e45

64500035141 has 8 divisors (see below), whose sum is σ = 66295202040. Its totient is φ = 62707601088.

The previous prime is 64500035137. The next prime is 64500035143. The reversal of 64500035141 is 14153000546.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35490792100 + 29009243041 = 188390^2 + 170321^2 .

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 64500035141 - 22 = 64500035137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64500035143) 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, 635306 + ... + 729803.

It is an arithmetic number, because the mean of its divisors is an integer number (8286900255).

Almost surely, 264500035141 is an apocalyptic number.

It is an amenable number.

64500035141 is a deficient number, since it is larger than the sum of its proper divisors (1795166899).

64500035141 is a wasteful number, since it uses less digits than its factorization.

64500035141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366423.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 64500035141 its reverse (14153000546), we get a palindrome (78653035687).

The spelling of 64500035141 in words is "sixty-four billion, five hundred million, thirty-five thousand, one hundred forty-one".

Divisors: 1 37 1277 47249 1365109 50509033 1743244193 64500035141