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20302010003231 = 11172343109774417
BaseRepresentation
bin1001001110110111011100…
…00110000010111100011111
32122212212000222120021110222
410213123232012002330133
510130112004030100411
6111102340432351555
74163525506501055
oct447335606027437
978785028507428
1020302010003231
116518041413530
12233a7ba0a55bb
13b4361867cb68
145028a03001d5
1525317dc314db
hex1276ee182f1f

20302010003231 has 32 divisors (see below), whose sum is σ = 25039105648128. Its totient is φ = 16229049661440.

The previous prime is 20302010003213. The next prime is 20302010003251. The reversal of 20302010003231 is 13230001020302.

It is a de Polignac number, because none of the positive numbers 2k-20302010003231 is a prime.

It is a super-2 number, since 2×203020100032312 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302010003251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54702266 + ... + 55072151.

It is an arithmetic number, because the mean of its divisors is an integer number (782472051504).

Almost surely, 220302010003231 is an apocalyptic number.

20302010003231 is a deficient number, since it is larger than the sum of its proper divisors (4737095644897).

20302010003231 is a wasteful number, since it uses less digits than its factorization.

20302010003231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109774511.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20302010003231 its reverse (13230001020302), we get a palindrome (33532011023533).

The spelling of 20302010003231 in words is "twenty trillion, three hundred two billion, ten million, three thousand, two hundred thirty-one".

Divisors: 1 11 17 23 43 187 253 391 473 731 989 4301 8041 10879 16813 184943 109774417 1207518587 1866165089 2524811591 4720299931 20527815979 27772927501 42921797047 51923299241 80245098827 108566898413 472139767517 882696087097 1194235882543 1845637273021 20302010003231