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42181018124 = 2273148595643
BaseRepresentation
bin100111010010001011…
…110100001000001100
311000212200000201220112
4213102023310020030
51142341320034444
631213325335152
73022166511140
oct472213641014
9130780021815
1042181018124
11169860a3263
1282124074b8
133c92b9902b
142082107220
15116d20469e
hex9d22f420c

42181018124 has 24 divisors (see below), whose sum is σ = 87083394048. Its totient is φ = 17494431120.

The previous prime is 42181018123. The next prime is 42181018163.

42181018124 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (42181018123) 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, 24296954 + ... + 24298689.

It is an arithmetic number, because the mean of its divisors is an integer number (3628474752).

Almost surely, 242181018124 is an apocalyptic number.

It is an amenable number.

42181018124 is an abundant number, since it is smaller than the sum of its proper divisors (44902375924).

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

42181018124 is a wasteful number, since it uses less digits than its factorization.

42181018124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48595685 (or 48595683 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

It can be divided in two parts, 421810 and 18124, that added together give a palindrome (439934).

The spelling of 42181018124 in words is "forty-two billion, one hundred eighty-one million, eighteen thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 48595643 97191286 194382572 340169501 680339002 1360678004 1506464933 3012929866 6025859732 10545254531 21090509062 42181018124