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31130100140 = 22553233241523
BaseRepresentation
bin11100111111011111…
…111010000110101100
32222100111202221022212
4130333133322012230
51002223301201030
622145002025552
72151301325306
oct347737720654
988314687285
1031130100140
1112225147a97
1260494a82b8
132c215544c9
141714580976
15c22e58595
hex73f7fa1ac

31130100140 has 96 divisors (see below), whose sum is σ = 67298527296. Its totient is φ = 12091023360.

The previous prime is 31130100139. The next prime is 31130100151. The reversal of 31130100140 is 4100103113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59521919 + ... + 59522441.

It is an arithmetic number, because the mean of its divisors is an integer number (701026326).

Almost surely, 231130100140 is an apocalyptic number.

It is an amenable number.

31130100140 is an abundant number, since it is smaller than the sum of its proper divisors (36168427156).

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

31130100140 is a wasteful number, since it uses less digits than its factorization.

31130100140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31130100140 its reverse (4100103113), we get a palindrome (35230203253).

The spelling of 31130100140 in words is "thirty-one billion, one hundred thirty million, one hundred thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 53 106 212 233 241 265 466 482 523 530 932 964 1046 1060 1165 1205 2092 2330 2410 2615 4660 4820 5230 10460 12349 12773 24698 25546 27719 49396 51092 55438 56153 61745 63865 110876 112306 121859 123490 126043 127730 138595 224612 243718 246980 252086 255460 277190 280765 487436 504172 554380 561530 609295 630215 1123060 1218590 1260430 2437180 2520860 2976109 5952218 6458527 6680279 11904436 12917054 13360558 14880545 25834108 26721116 29368019 29761090 32292635 33401395 58736038 59522180 64585270 66802790 117472076 129170540 133605580 146840095 293680190 587360380 1556505007 3113010014 6226020028 7782525035 15565050070 31130100140