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31200130341 = 331400982487
BaseRepresentation
bin11101000011101011…
…000011010100100101
32222112101112211201000
4131003223003110211
51002344213132331
622155543023513
72153111506062
oct350353032445
988471484630
1031200130341
1112260729796
126068a3ab99
132c32c039b3
14171d9adc69
15c2918d0e6
hex743ac3525

31200130341 has 16 divisors (see below), whose sum is σ = 46226275200. Its totient is φ = 20798349984.

The previous prime is 31200130333. The next prime is 31200130369. The reversal of 31200130341 is 14303100213.

31200130341 is a `hidden beast` number, since 312 + 0 + 0 + 13 + 0 + 341 = 666.

It is not a de Polignac number, because 31200130341 - 23 = 31200130333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200130441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337000 + ... + 419486.

It is an arithmetic number, because the mean of its divisors is an integer number (2889142200).

Almost surely, 231200130341 is an apocalyptic number.

It is an amenable number.

31200130341 is a deficient number, since it is larger than the sum of its proper divisors (15026144859).

31200130341 is a wasteful number, since it uses less digits than its factorization.

31200130341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96505 (or 96499 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31200130341 its reverse (14303100213), we get a palindrome (45503230554).

The spelling of 31200130341 in words is "thirty-one billion, two hundred million, one hundred thirty thousand, three hundred forty-one".

Divisors: 1 3 9 27 14009 42027 82487 126081 247461 378243 742383 2227149 1155560383 3466681149 10400043447 31200130341