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42542440122 = 2371377916557
BaseRepresentation
bin100111100111101110…
…100001111010111010
311001210212002212200110
4213213232201322322
51144111331040442
631313240045150
73034145526450
oct474756417272
9131725085613
1042542440122
1117051109a26
1282b34637b6
13401ca210c0
1420b81089d0
15118ece769c
hex9e7ba1eba

42542440122 has 32 divisors (see below), whose sum is σ = 104719853952. Its totient is φ = 11219984064.

The previous prime is 42542440103. The next prime is 42542440133. The reversal of 42542440122 is 22104424524.

It is a self number, because there is not a number n which added to its sum of digits gives 42542440122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38957733 + ... + 38958824.

It is an arithmetic number, because the mean of its divisors is an integer number (3272495436).

Almost surely, 242542440122 is an apocalyptic number.

42542440122 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42542440122 is an abundant number, since it is smaller than the sum of its proper divisors (62177413830).

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

42542440122 is a wasteful number, since it uses less digits than its factorization.

42542440122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77916582.

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 42542440122 its reverse (22104424524), we get a palindrome (64646864646).

The spelling of 42542440122 in words is "forty-two billion, five hundred forty-two million, four hundred forty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 77916557 155833114 233749671 467499342 545415899 1012915241 1090831798 1636247697 2025830482 3038745723 3272495394 6077491446 7090406687 14180813374 21271220061 42542440122