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138569620037875 = 5313176182231063
BaseRepresentation
bin11111100000011101000000…
…111110101010000011110011
3200011122010102001222202200221
4133200131000332222003303
5121130311040212203000
61210414001000153511
741121216235152625
oct3740350076520363
9604563361882627
10138569620037875
1140175056010844
121365b879468897
135c4209cac78a0
142630b3c00ac15
1511047a91eb61a
hex7e0740faa0f3

138569620037875 has 64 divisors (see below), whose sum is σ = 200425390454016. Its totient is φ = 94730183424000.

The previous prime is 138569620037843. The next prime is 138569620037881. The reversal of 138569620037875 is 578730026965831.

It is not a de Polignac number, because 138569620037875 - 25 = 138569620037843 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39430407 + ... + 42800656.

It is an arithmetic number, because the mean of its divisors is an integer number (3131646725844).

Almost surely, 2138569620037875 is an apocalyptic number.

138569620037875 is a deficient number, since it is larger than the sum of its proper divisors (61855770416141).

138569620037875 is a wasteful number, since it uses less digits than its factorization.

138569620037875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82231169 (or 82231159 counting only the distinct ones).

The product of its (nonzero) digits is 457228800, while the sum is 70.

The spelling of 138569620037875 in words is "one hundred thirty-eight trillion, five hundred sixty-nine billion, six hundred twenty million, thirty-seven thousand, eight hundred seventy-five".

Divisors: 1 5 13 17 25 61 65 85 125 221 305 325 425 793 1037 1105 1525 1625 2125 3965 5185 5525 7625 13481 19825 25925 27625 67405 99125 129625 337025 1685125 82231063 411155315 1069003819 1397928071 2055776575 5016094843 5345019095 6989640355 10278882875 18173064923 25080474215 26725095475 34948201775 65209232959 85273612331 90865324615 125402371075 133625477375 174741008875 326046164795 426368061655 454326623075 627011855375 1108556960303 1630230823975 2131840308275 2271633115375 5542784801515 8151154119875 10659201541375 27713924007575 138569620037875