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42130042589 = 45792188277
BaseRepresentation
bin100111001111001001…
…010110111011011101
311000202010002220121202
4213033021112323131
51142240242330324
631204305005245
73021010311335
oct471711267335
9130663086552
1042130042589
111695a346618
1281b9323825
133c8545b8ab
1420794380c5
1511689d58ae
hex9cf256edd

42130042589 has 4 divisors (see below), whose sum is σ = 42222231324. Its totient is φ = 42037853856.

The previous prime is 42130042567. The next prime is 42130042627. The reversal of 42130042589 is 98524003124.

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 34314598564 + 7815444025 = 185242^2 + 88405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42130042589 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 (42130042529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46093682 + ... + 46094595.

It is an arithmetic number, because the mean of its divisors is an integer number (10555557831).

Almost surely, 242130042589 is an apocalyptic number.

It is an amenable number.

42130042589 is a deficient number, since it is larger than the sum of its proper divisors (92188735).

42130042589 is an equidigital number, since it uses as much as digits as its factorization.

42130042589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92188734.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 42130042589 in words is "forty-two billion, one hundred thirty million, forty-two thousand, five hundred eighty-nine".

Divisors: 1 457 92188277 42130042589