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2153131225245 = 3357111385318679
BaseRepresentation
bin11111010101010000100…
…111110011000010011101
321121211121102021002101000
4133111100213303002131
5240234103043201440
64325045042340513
7311362412304630
oct37252047630235
97554542232330
102153131225245
117601574988a0
122a935b35a739
13128068752420
14762d8045c17
153b01b922730
hex1f5509f309d

2153131225245 has 256 divisors, whose sum is σ = 5145709363200. Its totient is φ = 824963927040.

The previous prime is 2153131225207. The next prime is 2153131225247. The reversal of 2153131225245 is 5425221313512.

2153131225245 is a `hidden beast` number, since 2 + 1 + 5 + 3 + 1 + 3 + 122 + 524 + 5 = 666.

It is not a de Polignac number, because 2153131225245 - 27 = 2153131225117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153131225247) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 115260816 + ... + 115279494.

It is an arithmetic number, because the mean of its divisors is an integer number (20100427200).

Almost surely, 22153131225245 is an apocalyptic number.

It is an amenable number.

2153131225245 is an abundant number, since it is smaller than the sum of its proper divisors (2992578137955).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2153131225245 is a wasteful number, since it uses less digits than its factorization.

2153131225245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19577 (or 19571 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 2153131225245 its reverse (5425221313512), we get a palindrome (7578352538757).

The spelling of 2153131225245 in words is "two trillion, one hundred fifty-three billion, one hundred thirty-one million, two hundred twenty-five thousand, two hundred forty-five".