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1031031211430 = 2511171823302443
BaseRepresentation
bin11110000000011100011…
…11111100010110100110
310122120021100010022000002
433000032033330112212
5113343022442231210
62105352121021302
7134326625461133
oct17001617742646
93576240108002
101031031211430
11368292270380
121479a2324832
13762c21a82cc
1437c8b80558a
151bc45b894a5
hexf00e3fc5a6

1031031211430 has 64 divisors (see below), whose sum is σ = 2144845744128. Its totient is φ = 352671567360.

The previous prime is 1031031211409. The next prime is 1031031211433. The reversal of 1031031211430 is 341121301301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031031211433) 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, 3257789 + ... + 3560231.

It is an arithmetic number, because the mean of its divisors is an integer number (33513214752).

Almost surely, 21031031211430 is an apocalyptic number.

1031031211430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031031211430 is an abundant number, since it is smaller than the sum of its proper divisors (1113814532698).

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

1031031211430 is a wasteful number, since it uses less digits than its factorization.

1031031211430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304301.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1031031211430 its reverse (341121301301), we get a palindrome (1372152512731).

The spelling of 1031031211430 in words is "one trillion, thirty-one billion, thirty-one million, two hundred eleven thousand, four hundred thirty".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 170 187 374 935 1823 1870 3646 9115 18230 20053 30991 40106 61982 100265 154955 200530 302443 309910 340901 604886 681802 1512215 1704505 3024430 3326873 3409010 5141531 6653746 10283062 16634365 25707655 33268730 51415310 56556841 113113682 282784205 551353589 565568410 1102707178 2756767945 5513535890 6064889479 9373011013 12129778958 18746022026 30324447395 46865055065 60648894790 93730110130 103103121143 206206242286 515515605715 1031031211430