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42120510500237 = 133240039269249
BaseRepresentation
bin10011001001110111100100…
…00100001110110110001101
312112010200101210112120110012
421210323302010032312031
521010100301142001422
6225325521223323005
711605051341643061
oct1144736204166615
9175120353476405
1042120510500237
111246a2321093a4
1248832a18b0465
131a66c40a06730
14a58901ddbaa1
154d09b78de4e2
hex264ef210ed8d

42120510500237 has 4 divisors (see below), whose sum is σ = 45360549769500. Its totient is φ = 38880471230976.

The previous prime is 42120510500221. The next prime is 42120510500291. The reversal of 42120510500237 is 73200501502124.

42120510500237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16979171295241 + 25141339204996 = 4120579^2 + 5014114^2 .

It is a cyclic number.

It is not a de Polignac number, because 42120510500237 - 24 = 42120510500221 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 (42120510509237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1620019634612 + ... + 1620019634637.

It is an arithmetic number, because the mean of its divisors is an integer number (11340137442375).

Almost surely, 242120510500237 is an apocalyptic number.

It is an amenable number.

42120510500237 is a deficient number, since it is larger than the sum of its proper divisors (3240039269263).

42120510500237 is a wasteful number, since it uses less digits than its factorization.

42120510500237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240039269262.

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 42120510500237 in words is "forty-two trillion, one hundred twenty billion, five hundred ten million, five hundred thousand, two hundred thirty-seven".

Divisors: 1 13 3240039269249 42120510500237