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20012055323 = 138779175349
BaseRepresentation
bin10010101000110011…
…111011101100011011
31220122200012202001012
4102220303323230123
5311441041232243
613105435444135
71305626443421
oct225063735433
956580182035
1020012055323
11853a3133a7
123a65bb664b
131b6c038b70
14d7bb43111
157c1d4cd18
hex4a8cfbb1b

20012055323 has 8 divisors (see below), whose sum is σ = 21554022000. Its totient is φ = 18470456928.

The previous prime is 20012055253. The next prime is 20012055347. The reversal of 20012055323 is 32355021002.

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 20012055323 - 28 = 20012055067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012055523) 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, 26453 + ... + 201801.

It is an arithmetic number, because the mean of its divisors is an integer number (2694252750).

Almost surely, 220012055323 is an apocalyptic number.

20012055323 is a deficient number, since it is larger than the sum of its proper divisors (1541966677).

20012055323 is a wasteful number, since it uses less digits than its factorization.

20012055323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184141.

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 20012055323 its reverse (32355021002), we get a palindrome (52367076325).

The spelling of 20012055323 in words is "twenty billion, twelve million, fifty-five thousand, three hundred twenty-three".

Divisors: 1 13 8779 114127 175349 2279537 1539388871 20012055323