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20130412331023 = 239573311469147
BaseRepresentation
bin1001001001110111110100…
…00100111000000000001111
32122021110010001021100002221
410210323322010320000033
510114304041024043043
6110451441143000211
74145242245366331
oct444737204700017
978243101240087
1020130412331023
116461294a64605
1223114aa439067
13b3039c726707
144d84623bb451
1524d988ee68ed
hex124efa13800f

20130412331023 has 8 divisors (see below), whose sum is σ = 20215006352640. Its totient is φ = 20045821362840.

The previous prime is 20130412331021. The next prime is 20130412331087. The reversal of 20130412331023 is 32013321403102.

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 20130412331023 - 21 = 20130412331021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130412331021) 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, 12967536 + ... + 14436682.

It is an arithmetic number, because the mean of its divisors is an integer number (2526875794080).

Almost surely, 220130412331023 is an apocalyptic number.

20130412331023 is a deficient number, since it is larger than the sum of its proper divisors (84594021617).

20130412331023 is a wasteful number, since it uses less digits than its factorization.

20130412331023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526717.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20130412331023 its reverse (32013321403102), we get a palindrome (52143733734125).

The spelling of 20130412331023 in words is "twenty trillion, one hundred thirty billion, four hundred twelve million, three hundred thirty-one thousand, twenty-three".

Divisors: 1 239 57331 1469147 13702109 351126133 84227666657 20130412331023