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38896693838 = 21728110134019
BaseRepresentation
bin100100001110011011…
…000111001001001110
310201101202222202222022
4210032123013021032
51114130023200323
625511403050142
72544616304522
oct441633071116
9121352882868
1038896693838
1115550195872
127656510952
13388b614a92
141c4dc4bd82
151029beb4c8
hex90e6c724e

38896693838 has 32 divisors (see below), whose sum is σ = 62073591840. Its totient is φ = 18216647680.

The previous prime is 38896693817. The next prime is 38896693853. The reversal of 38896693838 is 83839669883.

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 15 ways as a sum of consecutive naturals, for example, 9676193 + ... + 9680211.

It is an arithmetic number, because the mean of its divisors is an integer number (1939799745).

Almost surely, 238896693838 is an apocalyptic number.

38896693838 is a deficient number, since it is larger than the sum of its proper divisors (23176898002).

38896693838 is a wasteful number, since it uses less digits than its factorization.

38896693838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332.

The product of its digits is 322486272, while the sum is 71.

The spelling of 38896693838 in words is "thirty-eight billion, eight hundred ninety-six million, six hundred ninety-three thousand, eight hundred thirty-eight".

Divisors: 1 2 17 34 281 562 1013 2026 4019 4777 8038 9554 17221 34442 68323 136646 284653 569306 1129339 2258678 4071247 4839101 8142494 9678202 19198763 38397526 69211199 138422398 1144020407 2288040814 19448346919 38896693838