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20312400130413 = 347731973418841
BaseRepresentation
bin1001001111001010110010…
…11001001111000101101101
32122220211212002102102111020
410213211121121033011231
510130244243413133123
6111111215433044353
74164344132225046
oct447453131170555
978824762372436
1020312400130413
11652149336a8a6
1223408198566b9
13b445b3132c01
145031a81b78cd
1525358aea27e3
hex12795964f16d

20312400130413 has 16 divisors (see below), whose sum is σ = 28038334907136. Its totient is φ = 13071926396160.

The previous prime is 20312400130369. The next prime is 20312400130423. The reversal of 20312400130413 is 31403100421302.

It is a happy number.

It is not a de Polignac number, because 20312400130413 - 214 = 20312400114029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312400130423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 986699128 + ... + 986719713.

It is an arithmetic number, because the mean of its divisors is an integer number (1752395931696).

Almost surely, 220312400130413 is an apocalyptic number.

It is an amenable number.

20312400130413 is a deficient number, since it is larger than the sum of its proper divisors (7725934776723).

20312400130413 is a wasteful number, since it uses less digits than its factorization.

20312400130413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973418964.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20312400130413 its reverse (31403100421302), we get a palindrome (51715500551715).

The spelling of 20312400130413 in words is "twenty trillion, three hundred twelve billion, four hundred million, one hundred thirty thousand, four hundred thirteen".

Divisors: 1 3 47 73 141 219 3431 10293 1973418841 5920256523 92750685527 144059575393 278252056581 432178726179 6770800043471 20312400130413