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31032330012313 = 7311973536313259
BaseRepresentation
bin1110000111001010001110…
…00000011100011010011001
311001212122212102201222100121
413003211013000130122121
513031413202440343223
6150000020002033241
76352004031615010
oct703450700343231
9131778772658317
1031032330012313
11998481230a793
123592334648821
13144144a722796
14793d8947da77
1538c34e9b815d
hex1c394701c699

31032330012313 has 64 divisors (see below), whose sum is σ = 36969459056640. Its totient is φ = 25489591142400.

The previous prime is 31032330012311. The next prime is 31032330012319. The reversal of 31032330012313 is 31321003323013.

It is not a de Polignac number, because 31032330012313 - 21 = 31032330012311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31032330012311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9522038878 + ... + 9522042136.

It is an arithmetic number, because the mean of its divisors is an integer number (577647797760).

Almost surely, 231032330012313 is an apocalyptic number.

It is an amenable number.

31032330012313 is a deficient number, since it is larger than the sum of its proper divisors (5937129044327).

31032330012313 is a wasteful number, since it uses less digits than its factorization.

31032330012313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 31032330012313 its reverse (31321003323013), we get a palindrome (62353333335326).

The spelling of 31032330012313 in words is "thirty-one trillion, thirty-two billion, three hundred thirty million, twelve thousand, three hundred thirteen".

Divisors: 1 7 31 197 217 353 631 1379 2471 3259 4417 6107 10943 19561 22813 42749 69541 76601 101029 124307 136927 222743 486787 642023 707203 870149 1150427 1559201 2056429 2155771 3853517 4494161 6905033 8052989 14395003 15090397 19902713 26974619 35663237 43880371 48335231 63749299 139318991 226634119 249642659 307162597 405116513 446245093 725919437 1360291501 1586438833 2835815591 5081436059 7025657689 9522040507 12558611903 22503502547 49179603823 87910283321 143006129089 157524517829 1001042903623 4433190001759 31032330012313