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38401125514805 = 51717323893109297
BaseRepresentation
bin10001011101100111101010…
…11100011111111000110101
312000222010000110111121101202
420232303311130133320311
520013131001112433210
6213401122235102245
711042250455130644
oct1056636534377065
9160863013447352
1038401125514805
111126590a268609
12438248b2a1985
1318572978b6a21
1496a8a548d35b
15468d7c35d9a5
hex22ecf571fe35

38401125514805 has 32 divisors (see below), whose sum is σ = 49076556014304. Its totient is φ = 28745190752256.

The previous prime is 38401125514789. The next prime is 38401125514831. The reversal of 38401125514805 is 50841552110483.

It can be written as a sum of positive squares in 16 ways, for example, as 240447045316 + 38160678469489 = 490354^2 + 6177433^2 .

It is a cyclic number.

It is not a de Polignac number, because 38401125514805 - 24 = 38401125514789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38401125514805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351291917 + ... + 351401213.

It is an arithmetic number, because the mean of its divisors is an integer number (1533642375447).

Almost surely, 238401125514805 is an apocalyptic number.

It is an amenable number.

38401125514805 is a deficient number, since it is larger than the sum of its proper divisors (10675430499499).

38401125514805 is a wasteful number, since it uses less digits than its factorization.

38401125514805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133385.

The product of its (nonzero) digits is 768000, while the sum is 47.

The spelling of 38401125514805 in words is "thirty-eight trillion, four hundred one billion, one hundred twenty-five million, five hundred fourteen thousand, eight hundred five".

Divisors: 1 5 17 85 173 865 2941 14705 23893 109297 119465 406181 546485 1858049 2030905 4133489 9290245 18908381 20667445 70269313 94541905 321442477 351346565 1607212385 2611433221 13057166105 44394364757 221971823785 451777947233 2258889736165 7680225102961 38401125514805