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42154275018 = 23231032965687
BaseRepresentation
bin100111010000100101…
…110011000011001010
311000210210201001021010
4213100211303003022
51142312443300033
631210532224350
73021423265662
oct472045630312
9130723631233
1042154275018
1116971a97819
12820546b0b6
133c8a4945cb
14207c7451a2
15116abc0863
hex9d09730ca

42154275018 has 32 divisors (see below), whose sum is σ = 88828286976. Its totient is φ = 13309998768.

The previous prime is 42154275017. The next prime is 42154275073. The reversal of 42154275018 is 81057245124.

It is not an unprimeable number, because it can be changed into a prime (42154275017) 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, 1468630 + ... + 1497057.

It is an arithmetic number, because the mean of its divisors is an integer number (2775883968).

Almost surely, 242154275018 is an apocalyptic number.

42154275018 is an abundant number, since it is smaller than the sum of its proper divisors (46674011958).

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

42154275018 is a wasteful number, since it uses less digits than its factorization.

42154275018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965818.

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 42154275018 in words is "forty-two billion, one hundred fifty-four million, two hundred seventy-five thousand, eighteen".

Divisors: 1 2 3 6 23 46 69 103 138 206 309 618 2369 4738 7107 14214 2965687 5931374 8897061 17794122 68210801 136421602 204632403 305465761 409264806 610931522 916397283 1832794566 7025712503 14051425006 21077137509 42154275018