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30231311300020 = 22559127359561923
BaseRepresentation
bin1101101111110110001101…
…00100100011010110110100
310222001002022001201021211001
412313323012210203112310
512430302211143100040
6144144023411053044
76240066035115205
oct667730644432664
9128032261637731
1030231311300020
1196a6033111406
123483044ba1184
1313b3a536b698c
147672bbad95ac
153765bc04a59a
hex1b7ec69235b4

30231311300020 has 96 divisors (see below), whose sum is σ = 65251513958400. Its totient is φ = 11761090395264.

The previous prime is 30231311300017. The next prime is 30231311300027. The reversal of 30231311300020 is 2000311313203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231311300027) 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, 53518779 + ... + 54080701.

It is an arithmetic number, because the mean of its divisors is an integer number (679703270400).

Almost surely, 230231311300020 is an apocalyptic number.

It is an amenable number.

30231311300020 is an abundant number, since it is smaller than the sum of its proper divisors (35020202658380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30231311300020 is a wasteful number, since it uses less digits than its factorization.

30231311300020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562477 (or 562475 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30231311300020 its reverse (2000311313203), we get a palindrome (32231622613223).

The spelling of 30231311300020 in words is "thirty trillion, two hundred thirty-one billion, three hundred eleven million, three hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 59 118 127 236 254 295 359 508 590 635 718 1180 1270 1436 1795 2540 3590 7180 7493 14986 21181 29972 37465 42362 45593 74930 84724 91186 105905 149860 182372 211810 227965 423620 455930 561923 911860 1123846 2247692 2689987 2809615 5379974 5619230 10759948 11238460 13449935 26899870 33153457 53799740 66306914 71364221 132613828 142728442 165767285 201730357 285456884 331534570 356821105 403460714 663069140 713642210 806921428 1008651785 1427284420 2017303570 4034607140 4210489039 8420978078 11902091063 16841956156 21052445195 23804182126 25619755339 42104890390 47608364252 51239510678 59510455315 84209780780 102479021356 119020910630 128098776695 238041821260 256197553390 512395106780 1511565565001 3023131130002 6046262260004 7557827825005 15115655650010 30231311300020