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40112085638 = 2191278311663
BaseRepresentation
bin100101010110110111…
…011101101010000110
310211112110222002002102
4211112313131222012
51124122143220023
630232141112102
72620005050042
oct452667355206
9124473862072
1040112085638
11160142546a9
127935558632
133a23368021
141d27427022
15109b777628
hex956ddda86

40112085638 has 16 divisors (see below), whose sum is σ = 63833579520. Its totient is φ = 18850849416.

The previous prime is 40112085623. The next prime is 40112085647. The reversal of 40112085638 is 83658021104.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4151006 + ... + 4160657.

It is an arithmetic number, because the mean of its divisors is an integer number (3989598720).

Almost surely, 240112085638 is an apocalyptic number.

40112085638 is a deficient number, since it is larger than the sum of its proper divisors (23721493882).

40112085638 is a wasteful number, since it uses less digits than its factorization.

40112085638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8311811.

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 40112085638 in words is "forty billion, one hundred twelve million, eighty-five thousand, six hundred thirty-eight".

Divisors: 1 2 19 38 127 254 2413 4826 8311663 16623326 157921597 315843194 1055581201 2111162402 20056042819 40112085638