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31310130130202 = 2711203312533313
BaseRepresentation
bin1110001111001111101010…
…01011110010110100011010
311002212012220210200010220202
413013213311023302310122
513100441121303131302
6150331401502422202
76411040132635110
oct707476513626432
9132765823603822
1031310130130202
119a81608228a80
123618143291962
1314616c0186971
147a35c008dab0
153946ad214202
hex1c79f52f2d1a

31310130130202 has 16 divisors (see below), whose sum is σ = 58554009594432. Its totient is φ = 12198751998720.

The previous prime is 31310130130199. The next prime is 31310130130229. The reversal of 31310130130202 is 20203103101313.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101656266503 + ... + 101656266810.

It is an arithmetic number, because the mean of its divisors is an integer number (3659625599652).

Almost surely, 231310130130202 is an apocalyptic number.

31310130130202 is a deficient number, since it is larger than the sum of its proper divisors (27243879464230).

31310130130202 is a wasteful number, since it uses less digits than its factorization.

31310130130202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203312533333.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31310130130202 its reverse (20203103101313), we get a palindrome (51513233231515).

The spelling of 31310130130202 in words is "thirty-one trillion, three hundred ten billion, one hundred thirty million, one hundred thirty thousand, two hundred two".

Divisors: 1 2 7 11 14 22 77 154 203312533313 406625066626 1423187733191 2236437866443 2846375466382 4472875732886 15655065065101 31310130130202