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38816553156428 = 2279527923269027
BaseRepresentation
bin10001101001101101011101…
…10111001011111101001100
312002102211022022220101002202
420310312232313023331030
520041432300102001203
6214320024531141032
711114255241616655
oct1064665667137514
9162384268811082
1038816553156428
111140600a347453
12442aaa9144778
131887501540098
14982a3459452c
15474a93390388
hex234daedcbf4c

38816553156428 has 24 divisors (see below), whose sum is σ = 68801861990400. Its totient is φ = 19158971399568.

The previous prime is 38816553156421. The next prime is 38816553156431. The reversal of 38816553156428 is 82465135561883.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38816553156421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9966350 + ... + 13302677.

It is an arithmetic number, because the mean of its divisors is an integer number (2866744249600).

Almost surely, 238816553156428 is an apocalyptic number.

It is an amenable number.

38816553156428 is a deficient number, since it is larger than the sum of its proper divisors (29985308833972).

38816553156428 is a wasteful number, since it uses less digits than its factorization.

38816553156428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23274389 (or 23274387 counting only the distinct ones).

The product of its digits is 165888000, while the sum is 65.

The spelling of 38816553156428 in words is "thirty-eight trillion, eight hundred sixteen billion, five hundred fifty-three million, one hundred fifty-six thousand, four hundred twenty-eight".

Divisors: 1 2 4 79 158 316 5279 10558 21116 417041 834082 1668164 23269027 46538054 93076108 1838253133 3676506266 7353012532 122837193533 245674387066 491348774132 9704138289107 19408276578214 38816553156428