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10138305439705 = 54215578646853
BaseRepresentation
bin1001001110001000001000…
…0110000010011111011001
31022220012201221022112212011
42103202002012002133121
52312101222143032310
633321250114345521
72064316442235502
oct223420206023731
938805657275764
1010138305439705
1132596a412aa03
121178a55b8b2a1
13587065926c01
142709a768dba9
15128ac1ed778a
hex938821827d9

10138305439705 has 16 divisors (see below), whose sum is σ = 12216759555024. Its totient is φ = 8076851516160.

The previous prime is 10138305439697. The next prime is 10138305439711. The reversal of 10138305439705 is 50793450383101.

It can be written as a sum of positive squares in 8 ways, for example, as 1359108292864 + 8779197146841 = 1165808^2 + 2962971^2 .

It is not a de Polignac number, because 10138305439705 - 23 = 10138305439697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3150942 + ... + 5495911.

It is an arithmetic number, because the mean of its divisors is an integer number (763547472189).

Almost surely, 210138305439705 is an apocalyptic number.

It is an amenable number.

10138305439705 is a deficient number, since it is larger than the sum of its proper divisors (2078454115319).

10138305439705 is an equidigital number, since it uses as much as digits as its factorization.

10138305439705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8647836.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 10138305439705 in words is "ten trillion, one hundred thirty-eight billion, three hundred five million, four hundred thirty-nine thousand, seven hundred five".

Divisors: 1 5 421 557 2105 2785 234497 1172485 8646853 43234265 3640325113 4816297121 18201625565 24081485605 2027661087941 10138305439705