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9138083140 = 2253712348761
BaseRepresentation
bin10001000001010110…
…00001010101000100
3212120211220201110201
420200223001111010
5122203322130030
64110432500244
7442310265544
oct104053012504
925524821421
109138083140
11396a23412a
1219303aa684
13b28268cb4
146298bb324
153873a52ca
hex220ac1544

9138083140 has 24 divisors (see below), whose sum is σ = 19708624152. Its totient is φ = 3556442880.

The previous prime is 9138083131. The next prime is 9138083159. The reversal of 9138083140 is 413808319.

It can be written as a sum of positive squares in 4 ways, for example, as 270470916 + 8867612224 = 16446^2 + 94168^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 9138083140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6173641 + ... + 6175120.

It is an arithmetic number, because the mean of its divisors is an integer number (821192673).

Almost surely, 29138083140 is an apocalyptic number.

It is an amenable number.

9138083140 is an abundant number, since it is smaller than the sum of its proper divisors (10570541012).

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

9138083140 is a wasteful number, since it uses less digits than its factorization.

9138083140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12348807 (or 12348805 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 9138083140 is about 95593.3216286577. The cubic root of 9138083140 is about 2090.6678222695.

The spelling of 9138083140 in words is "nine billion, one hundred thirty-eight million, eighty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 12348761 24697522 49395044 61743805 123487610 246975220 456904157 913808314 1827616628 2284520785 4569041570 9138083140