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20004314231 = 112295700859
BaseRepresentation
bin10010101000010110…
…011001110001110111
31220122010122110021002
4102220112121301313
5311432101023411
613105001513515
71305503602556
oct225026316167
956563573232
1020004314231
118535a06400
123a634a289b
131b6a558535
14d7aac9d9d
157c131e33b
hex4a8599c77

20004314231 has 12 divisors (see below), whose sum is σ = 22746431400. Its totient is φ = 17558642640.

The previous prime is 20004314203. The next prime is 20004314237. The reversal of 20004314231 is 13241340002.

It is a de Polignac number, because none of the positive numbers 2k-20004314231 is a prime.

It is a super-2 number, since 2×200043142312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004314237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2846921 + ... + 2853938.

It is an arithmetic number, because the mean of its divisors is an integer number (1895535950).

Almost surely, 220004314231 is an apocalyptic number.

20004314231 is a deficient number, since it is larger than the sum of its proper divisors (2742117169).

20004314231 is a wasteful number, since it uses less digits than its factorization.

20004314231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5700910 (or 5700899 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20004314231 its reverse (13241340002), we get a palindrome (33245654233).

The spelling of 20004314231 in words is "twenty billion, four million, three hundred fourteen thousand, two hundred thirty-one".

Divisors: 1 11 29 121 319 3509 5700859 62709449 165324911 689803939 1818574021 20004314231