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20135142752255 = 517892250994159
BaseRepresentation
bin1001001010000000101000…
…00001111111111111111111
32122021220022201101122010022
410211000110001333333333
510114343233021033010
6110453542404202355
74145500415326016
oct445002401777777
978256281348108
1020135142752255
1164632a2186043
1223123aa6993bb
13b3097477912b
144d8790747a7d
1524db6444cd55
hex12501407ffff

20135142752255 has 8 divisors (see below), whose sum is σ = 24175677278400. Its totient is φ = 16099110218016.

The previous prime is 20135142752243. The next prime is 20135142752303. The reversal of 20135142752255 is 55225724153102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20135142752255 - 210 = 20135142751231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125488135 + ... + 1125506024.

It is an arithmetic number, because the mean of its divisors is an integer number (3021959659800).

Almost surely, 220135142752255 is an apocalyptic number.

20135142752255 is a deficient number, since it is larger than the sum of its proper divisors (4040534526145).

20135142752255 is a wasteful number, since it uses less digits than its factorization.

20135142752255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250995953.

The product of its (nonzero) digits is 840000, while the sum is 44.

The spelling of 20135142752255 in words is "twenty trillion, one hundred thirty-five billion, one hundred forty-two million, seven hundred fifty-two thousand, two hundred fifty-five".

Divisors: 1 5 1789 8945 2250994159 11254970795 4027028550451 20135142752255