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40408440088 = 23172111715647
BaseRepresentation
bin100101101000100001…
…111101110100011000
310212022010121102222011
4211220201331310120
51130224030040323
630321405035304
72630234034142
oct455041756430
9125263542864
1040408440088
1116156569135
1279b8855b34
133a6c88a6a3
141d5492bc92
1510b77b620d
hex96887dd18

40408440088 has 48 divisors (see below), whose sum is σ = 80562006720. Its totient is φ = 18997498368.

The previous prime is 40408440073. The next prime is 40408440091. The reversal of 40408440088 is 88004480404.

It is a self number, because there is not a number n which added to its sum of digits gives 40408440088.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2574681 + ... + 2590327.

It is an arithmetic number, because the mean of its divisors is an integer number (1678375140).

Almost surely, 240408440088 is an apocalyptic number.

It is an amenable number.

40408440088 is a deficient number, since it is larger than the sum of its proper divisors (40153566632).

40408440088 is a wasteful number, since it uses less digits than its factorization.

40408440088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16804 (or 16783 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 40408440088 in words is "forty billion, four hundred eight million, four hundred forty thousand, eighty-eight".

Divisors: 1 2 4 8 17 34 68 136 289 578 1117 1156 2234 2312 4468 8936 15647 18989 31294 37978 62588 75956 125176 151912 265999 322813 531998 645626 1063996 1291252 2127992 2582504 4521983 9043966 17477699 18087932 34955398 36175864 69910796 139821592 297120883 594241766 1188483532 2376967064 5051055011 10102110022 20204220044 40408440088